Energy Drinks Seen Fuelling Cancer, But There's a Strange Catch
But as the market grows, so do concerns about what's actually in these drinks – and what these ingredients might be doing to our bodies.
Many energy drinks contain some combination of three familiar stimulants: caffeine, found naturally in coffee, tea and cacao; guarana, an Amazonian plant rich in caffeine; and taurine, a naturally occurring amino acid found in scallops, mussels, turkey and chicken.
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Taurine, in particular, has drawn both hype and hope. It is credited with performance-enhancing properties and potential health benefits. But new research is raising important questions about how it behaves in the body – and when it might do more harm than good.
In May 2025, a study published in Nature sparked headlines and unease in equal measure. It found that taurine may fuel the progression of leukaemia, a group of blood cancers that begin in the bone marrow.
The study showed that while healthy bone marrow cells naturally produce taurine, leukaemia cells cannot. But they can absorb taurine from their surroundings and use it as a fuel source to grow and multiply.
Research on mice and in human leukaemia cell samples demonstrated that taurine in the tumour microenvironment – the area around a tumour that includes blood vessels, immune cells and structural support – accelerated the progression of leukaemia.
Crucially, when researchers blocked taurine uptake by leukaemia cells (using genetic techniques), cancer progression slowed significantly. The authors suggest taurine supplements could potentially worsen outcomes in people with leukaemia and propose that developing targeted ways to block taurine uptake by cancer cells might offer a new treatment strategy.
Taurine: friend or foe?
Taurine is one of the most abundant free amino acids in the human body, found in especially high concentrations in the heart, muscles and brain. In healthy people, it's mainly obtained through diet, but the body can also synthesise taurine from the amino acids methionine and cysteine, provided it has enough vitamin B6, which is found in foods such as salmon, tuna, chicken, bananas and milk.
Most people consuming a typical western diet take in 40mg–400mg of taurine a day from food alone. This figure refers only to taurine that is directly ingested, not including the additional amount the body can synthesise internally, which may vary depending on age, diet and health.
Taurine is listed on the Food and Drug Administration's (FDA's) generally recognised as safe (GRAS) database, and according to the European Food Safety Authority (EFSA), it's safe to consume up to six grams per day. By comparison, a serving of Red Bull or Monster contains around one gram – comfortably below that threshold.
Despite recent concerns about a possible link to blood cancer progression, taurine isn't inherently harmful. In fact, some people may benefit from supplementation, especially those receiving long-term parenteral nutrition, where nutrients are delivered directly into the bloodstream because the gut isn't working properly.
People with chronic liver, kidney or heart failure may also have trouble producing or holding on to enough taurine, making supplementation helpful in specific clinical settings.
Ironically, some research suggests taurine may actually help reduce the side effects of chemotherapy in leukaemia patients – even as emerging studies raise concerns that it could also fuel the disease.
This contradiction underscores how much context matters: the effects of taurine depend not just on dosage and delivery, but also on the patient's underlying condition. What helps in one context, could harm in another.
But here's the catch: taking taurine as a supplement for particular health reasons is very different from consuming large quantities through energy drinks, which often combine taurine with high levels of caffeine and sugar.
This combination can put strain on the heart, interfere with sleep and increase the risk of side effects, particularly for people with underlying health conditions or those taking other stimulants.
The latest research raises important questions about whether taurine-heavy products could be harmful in some cases, especially for people with, or at risk of, blood cancers.
So, should you worry?
According to the current evidence, if you're a healthy adult who occasionally sips an energy drink, there's little cause for alarm. But moderation is key.
Consuming multiple high-taurine drinks daily or taking taurine supplements (without prior professional consultation), on top of a taurine-rich diet might not be wise, especially if future research confirms links between taurine and cancer progression.
Until more is known, the safest approach would be to enjoy your energy boosts by consuming a nutritious diet rather than consuming energy drinks. If you have any underlying health conditions – or a family history of cancer – it's always best to consult a healthcare professional before diving into taurine supplementation or consumption of energy drinks.
Gulshanara (Rumy) Begum, Senior Lecturer in Nutrition & Exercise Science, University of Westminster
This article is republished from under a Creative Commons license. Read the .
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Associated Press
an hour ago
- Associated Press
US organ donation system faces scrutiny and changes after reports of disturbing near-misses
WASHINGTON (AP) — The U.S. is developing new safeguards for the organ transplant system after a government investigation found a Kentucky group continued preparations for organ donation by some patients who showed signs of life, officials told Congress Tuesday. While the organ removals were canceled, near misses that some lawmakers called horrifying should never happen. A House subcommittee asked how to repair trust in the transplant network for potential organ donors and families -- some of whom have opted out of donor registries after these cases were publicized. 'We have to get this right,' said Rep. Brett Guthrie, a Kentucky Republican who chairs the Energy and Commerce Committee and whose mother died waiting for a liver transplant. 'Hopefully people will walk away today knowing we need to address issues but still confident that they can give life,' Guthrie said, adding that he will remain a registered organ donor. The hearing came after a federal investigation began last fall into allegations that a Kentucky donation group pressured a hospital in 2021 to proceed with plans to withdraw life support and retrieve organs from a man despite signs that he might be waking up from his drug overdose. That surgery never happened after a doctor noticed him moving and moaning while being transported to the operating room — and the man survived. Lawmakers stressed most organ donations proceed appropriately and save tens of thousands of lives a year. But the federal probe – concluded in March but only made public ahead of Tuesday's hearing -- cited a 'concerning pattern of risk' in dozens of other cases involving the Kentucky group's initial planning to recover someone's organs. The report said some should have been stopped or reassessed earlier, and mostly involved small or rural hospitals with less experience in caring for potential organ donors. The Kentucky organ procurement organization, or OPO, has made changes and the national transplant network is working on additional steps. But notably absent Tuesday was any testimony from hospitals – whose doctors must independently determine a patient is dead before donation groups are allowed to retrieve organs. Here's a look at how the nation's transplant system works. There's a dire need for organ donation More than 100,000 people are on the U.S. transplant list and about 13 a day die waiting, according to the Organ Procurement and Transplantation Network. Only about 1% of deaths occur in a way that allows someone to even be considered for organ donation. Most people declared dead in a hospital will quickly be transferred to a funeral home or morgue instead. How the U.S. organ transplant system is set up Several groups are involved in every transplant: the hospital caring for someone dead or dying; the 55 OPOs that coordinate recovery of organs and help match them to patients on the waiting list; and transplant centers that decide if an organ is the right fit for their patients. Adding to the complexity, two government agencies — HRSA, the Health Resources and Services Administration, and the Centers for Medicare and Medicaid Services — share regulatory oversight of different parts of the donation and transplant process. How deceased donation works Most organ donors are brain-dead – when testing determines someone has no brain function after a catastrophic injury. The body is left on a ventilator to support the organs until they can be retrieved. But increasingly organs are donated after circulatory death, called DCD – when people die because their heart stops. It usually happens when doctors determine someone has a nonsurvivable injury and the family withdraws life support. Donation groups don't provide hands-on patient care Hospitals are required to alert their area OPO to every potential donor who is declared brain-dead or once the decision to withdraw life support is made. The OPOs by law can't participate in that decision and 'we are not even in the room at that time,' said Barry Massa of Kentucky's Network for Hope. During the following days of preparation, hospital employees continue caring for the patient – while the donation team talks with the family about the process, gathers hospital records showing the patient is eligible, requests tests of organ quality, and make arrangements with transplant centers to use them. Once the hospital withdraws life support and the heart stops beating there's a mandatory wait – five minutes – to be sure it won't restart. When the doctor declares death, the organ retrieval process can begin. Organs are only considered usable if death occurs relatively quickly, usually up to about two hours. Sometimes that takes much longer and thus the organs can't be used – and HRSA's Dr. Raymond Lynch told Congress that doesn't necessarily mean anything was done wrong. Still, he said HRSA is investigating reports of possible mistakes elsewhere. 'This is a technically demanding form of care' that requires 'good collaboration between the OPO and the hospital,' he said. What happens next At issue is how doctors are sure when it's time to withdraw life support from a dying patient — and the delicate balance of how OPOs interact with hospital staff in preparing for donation once death occurs. In May, HRSA quietly ordered the U.S. transplant network to oversee improvements at the Kentucky OPO and to develop new national policies making clear that anyone – family, hospital staff or organ donation staff – can call for a pause in donation preparations any time there are concerns about the patient's eligibility. Lynch said the government now wants more proactive collaboration from OPOs to give hospital staff 'a clear understanding' of when to at least temporarily halt and reevaluate a potential donor if their health status changes. Kentucky's Massa said his group only received HRSA's reports this week – but that after learning about last fall's allegations, it made some changes. Massa said every hospital doctor and nurse now gets a checklist on caring for potential donors and how to pause when concerns are raised — and anyone can anonymously report complaints. ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.
Cosmopolitan
an hour ago
- Cosmopolitan
The Oura Ring 4 Fixed My Sleep. Here's My Honest Review in 2025.
I love my Oura ring. Ask any of my friends and they'll tell you that it's become one of my main personality traits over the past year and a half, that if I had a cartoon character, she would have a gold ring on her pointer finger. I'm never seen without it (if I am, get ready to hear a panicked 'Wait… did I lose my Oura ring?' in three… two… one…) and the minimal weight slips below the level of consciousness so it's basically a part of me. In the time since I last updated my 2023 review of the Gen 3 Oura ring, the company released a brand new iteration, the Oura 4. Checks out, as they've historically released a new version every three years. And because of the aforementioned making-it-my-whole-personality thing, I knew I had to do a full test of the new version. After wearing it for six months, I'm ready to give you my full, in-depth, scientifically-proven (okay, I'm not a scientist, but there's lots of ~health data~) review—it's broken down into sections that are easy to scroll through in case you're looking for something specific, with tons of pics and anecdotes about what I loved and didn't love. Note: If you want a more in-depth walkthrough of how I picked out my ring and set it up, you can read the full breakdown in our Oura 3 review here. The fit metrics and process of ordering a size kit are both still the same, just make sure you're specifically ordering the Oura 4 size kit—either on their website or on Amazon! So, the Oura Ring is a health tracker. But what does it actually track? 'The Oura Ring boasts temperature sensors, a suite of LED lights to measure heart rate and blood oxygen, and an activity accelerometer to provide you with accurate insights to support your overall health,' says Jason Russell, Oura's Senior Director of Product. Once data is collected via the sensors, you're given three scores each day to help you interpret your stats at a glance: your Sleep Score, your Readiness Score, and your Activity Score. It's a number out of 100 that grades your sleep, your movement, and how prepared your body is to take on the day based on tons of data points from REM and deep sleep to heart rate variability and your body temperature while you're asleep. You also get a stress rating and resilience rating, and you can opt into Cycle Tracking as well. While the basic concept and experience you know and love is still the same, there are a handful of useful new features that the Oura team rolled out with the fourth-generation ring. And pssst: While the new hardware features are unique to the 4, the software and app updates will be available for anyone with any version of the Oura Ring! First up: Major redesign! The app used to have a fixed design but now, you'll see different stats and scores highlighted depending on what time of day you open up your app. Whatever is most helpful or notable will float up to the top throughout the day, whether it's an exceptional sleep score or an elevated body temperature. Huge news for anyone who doesn't want to get into the weeds of HRV charts and just wants to be given the most important highlights! Visually, the bumpy domes on the inside of the Gen 3 have been removed and replaced with flat sensors for a more comfortable wearing experience. This new ring also has smart sensing and increased accuracy, which didn't pick up on any life changing new data so it wasn't a huge, measurable impact on my life, but someone who tracks their heart rate or body temperature more closely will appreciate this. I also find that the battery lasts a lot longer, allowing me to go several days without charging rather than having to juice it up every other day. I was a perfect size 6 in the Gen 3, so I ordered the size 6 in the Gen 4, but that ended up being so loose that I was experiencing gaps in my data. I exchanged it for a size 5, which I wore on a smaller finger. A word to the wise: Because the Oura 4 has flat sensors on the inside instead of the Oura 3's raised sensors, it's going to be slightly looser even if you get the same size you had before. Don't assume you'll be the same size in the newer Gen 4! To avoid this, order a sizing kit beforehand. And if you have an older Oura ring that you're upgrading, transferring your data over is incredibly easy—just click on the battery signal in the top right corner of your app, hit 'Set up a new ring,' and follow the tutorial (it took me 30 seconds…max). The Oura Ring 4 will cost $349 for Silver or Black, $399 or Brushed Silver or Stealth, or $499 for Gold or Rose Gold. In addition to that, there's a $5.99 monthly subscription cost to use the app that displays and interprets all of your data. Would I say that's cheap? No. But the monthly subscription cost barely makes a dent compared to other health apps (WHOOP costs hundreds per year) so you're really just making a one time investment that you'll be able to wear for a couple years. I'm not proud of it, but I used to check Instagram and TikTok first thing in the morning. Like, as soon as I opened my eyes. I can't say I've fully kicked the phone habit, but I'm no longer going straight to brain rot the second I'm awake, because now I check my Oura app as soon as I wake up to get the full download on my sleep. When you wear the ring overnight, it collects data on when you fell asleep, what sleep stages you were in throughout the night, how your breathing, heart rate, and temperature changed through each phase, and how long you slept for. That's insanely valuable data, people, considering the fact that it's hard to monitor your own sleep while you're, well, asleep. Once you check your app in the morning, you'll receive a sleep score from 0-100 based on your numbers as well as whether your stats were higher, lower, or about on par with the usual. I found that I tended to average in the 80s, but it really depends on how stressed I am! Oh, and your Oura Ring will track naps, too. Whether it's an accidental 30 minute couch snooze or your attempt at falling asleep in your dinky economy seat that only lasts 15 minutes, your ring will pick up on that and adjust your daily sleep score accordingly. Ah, the elusive Readiness score. What does it actually mean to be ready? What is 75 points ready vs. 90 points ready? Do I have to cancel all of my plans if I wake up with a 56 as my readiness score?! All good questions. To put it simply, it's a rating of how ready your body is to take on the day based on how well you've been sleeping and how your resting heart rate has been trending recently. If you've been clocking under six hours a night with a heart rate that won't calm down (a symptom that usually correlates with drinking, by the way!) your readiness score might be lower than usual. This, paired with your Resilience level (which basically measures your current stress levels and how you're recovering from it), is a great indicator of how much your body is able to take on. But you don't have to be tied to it. Sometimes getting a great sweat in on a lower Readiness day helps me bounce back from it, whereas other times it's permission to skip that workout class and cancel your nighttime plans in order to get better recovery sleep. The Oura Ring is meant to make your life better—so think of a high Readiness score as an encouragement to try going the extra mile, and a low Readiness score as a reminder to be kind to yourself if things feel harder than usual. When I reviewed the Oura 3, the weakest point was probably the fact that the old software would think that certain activities (walking, emptying the dishwasher, going up the stairs) were other activities (boxing, swimming, sports). But I can confidently say that the activity tracking on the new ring and new software has improved. It correctly picked up on the fact that I was boxing, skiing, and kayaking without me needing to manually tag each activity, and it's nice to be able to see my route and cardio zones via the Oura app when I (very occasionally) go on a run through Central Park. In addition to activity detection and running features, the Oura Ring also tracks your steps and caloric expenditure, if you're into that kind of thing. I don't do a ton of cardio and I'm aware that as a New York City resident I clock plenty of steps per day, but it was nice to see the correlation between heavy activity days and how quickly I was able to fall asleep the following night. The Oura Ring may not be the most comprehensive training tracker on the market. It doesn't claim to be! It is, however, hands down the best middle-of-the-road option out there. It's chic, non-intimidating and accessible, it looks pretty on your hand, and it gives you comprehensive activity data with zero pressure to close activity rings (you know what I'm talking about) or stand up every 30 minutes. It's perfect for someone like me, who wants to remain active and have a general awareness of it—but not at the cost of my sanity or how cute my accessories are. I was confused about a lot of things during my teenage years, including my period, which was pretty high up on the blind-navigation list. Basically, it would come every 25-40 days, and it was a complete shock every time. But after learning how to track my cycle via body temperature over the past couple of years, I've gone from being like, 'My period is here AGAIN?!' to being like, 'Yeah I know I'm getting my period at some point today because my temperature dropped.' Confused? Basically, your body temperature typically sits below baseline during the follicular phase (the first part of the menstrual cycle), spikes right around ovulation, and then sits above baseline during the luteal phase (the part of the menstrual cycle right before you bleed) until the day of your period when your temperature drops noticeably. The Oura Ring 4 takes your temperature every day and charts it so you can keep track of where you're at in your monthly cycle, which is, uh, SO much better than going into it blindly and then being stuck without a tampon in a public restroom while wearing white jeans. Just me? This temperature data can also be used to estimate fertile days if you're trying to conceive or trying to avoid getting pregnant without being on hormonal birth control. I didn't find Oura's in-app ovulation and period prediction dates to be super accurate, if I'm being honest, but you can sign up for the Natural Cycles app (an FDA-cleared form of non-hormonal birth control) which integrates seamlessly with the Oura app. I found the Natural Cycles predictions to be much more accurate and consistent, and it's $119.99 per year, which comes out to just $9.99 a month. The most important part of the entire review, if you ask me. I've tried so many different stacks, some out of necessity (because my ring is a little loose on certain fingers) and some for style purposes. My favorite compliment is 'Omg I didn't even notice you were wearing a health tracker, it blends right in with the rest of your jewelry!'. Here are some of the stacking rings I've invested in… The complimentary rings I reach for the most often are these two Pavoi bands that went semi-viral on TikTok for being under $20 each. Tons of people started wearing these bands above and below their Oura ring for a shockingly luxe look—and yes, I can confirm that it's a totally seamless stack. Alternatively, I love wearing my Oura ring with a solitaire crystal ring—my go-to is from Uno de 50 and currently sold out, but below are some alternatives as well as rings I tend to wear on other fingers! And lastly, I've found it really helpful to wear a thin chain around my neck for periods where I need to take my ring off but want to make sure I don't lose it, like when I'm getting a manicure or when I'm lifting weights and don't want the bar to scratch up the metal. Okay, that was a lot of information! After testing out the Oura Ring 4 for six months I can confidently say that I'm a huge fan and love the product even more than I did before, but if you're still trying to digest all of that before making your decision, let's break it down into a simple pros and cons list... Hannah Oh is a self-proclaimed nerd for biometrics and sleep optimization. Along with writing about the best sales and deals to spend your hard-earned money on, she has tested a variety of sleep-tracking devices and wearables on her quest to create the perfect bedroom sanctuary in the middle of noisy New York City. She is never seen without her Oura ring and has been known to tell strangers on the street why they should buy one, too. Hannah is the Shopping Editor at Cosmopolitan, covering all things from chic home decor to trendy fashion finds, TikTok products that are actually worth your $$$, and the perfect gift to buy for your boyfriend's mom. She previously wrote for Seventeen and CR Fashion Book. Follow her on Instagram for hot takes on red carpet fashion and pictures of her office outfits that nobody asked for.
CNET
2 hours ago
- CNET
We're Surviving This Summer's Heat Wave With These Must-Have Cooling Products
Hot weather is here, and this week's heat wave has been stifling. It's important to stay safe when having fun in the sun this summer. So, if you plan to spend time outside, be sure you're prepared with the essentials to keep cool. Here are 10 items you can use to survive this year's heat waves and summer highs. 1. Cooling towels A handheld towel is excellent for drying off after exercising, playing sports or doing hard work under the sun. A cooling towel is a step above. Just get these towels wet with cold water and wring out the extra water. Then, wrap the cooling towel around your neck or dab your face; it should stay cool for up to 2 hours. When it starts to warm up again, just add more water and repeat the process. These towels are great for a hot, summertime walk, relaxing at the beach or a long hike up the mountains. Mission Mission Cool Anywhere Towels These reusable, two-pack microfiber towels come in two different colors. They also offer UPF 50 sun protection. $20 at Amazon 2. Electrolyte powder When you spend lots of time in the heat, your body actively loses water and electrolytes -- minerals found in the body that have a charge -- through sweat. It's important to replace that lost water and electrolytes with fluids. If you struggle to drink eight cups of water a day in the summer (and sometimes you need more if you're extremely active in the heat), an electrolyte drink can help replenish your body. The best electrolyte powders usually contain sodium, calcium, potassium, phosphate, chloride or magnesium. Electrolytes such as these can balance your body's water and pH levels, move nutrients throughout your cells, carry out waste from your cells, and ensure all muscles, bodily functions and nerves are working correctly. Amazon/Screenshot by CNET Liquid I.V. Hydration Multiplier Liquid I.V. powder provides two times faster hydration than water alone. It includes five vitamins and and many electrolytes. One bag of Liquid I.V. includes 16 on-the-go packets. Add one packet to 16 ounces of water and stir. $23 at Amazon 3. Reusable water bottle Rule No. 1 for surviving the heat: drink lots of water. Whether this is water or an electrolyte drink, hydration in the summer is key. You don't want to become dehydrated. Dehydration symptoms include tired, dark yellow urine, sunken eyes, headache and lightheadedness. I find that I drink the most water when I carry a water bottle around with me. I also drink more water when it stays ice cold throughout the day. An insulated stainless steel water bottle will do just that. Amazon/Screenshot by CNET Hydro Flask Choose between an 18-, 21- or 24-ounce Hydro Flask. Made with Pro-Made stainless steel, this water bottle is non-free, BPA-free and keeps water cold for up to 24 hours. $32 at Amazon 4. Portable fan A portable fan is handy when you miss the indoors or are dealing with broken AC. Cool down while walking, traveling or doing anything in the sun. It can even be useful for summer camping or hanging at the beach. Look for a portable fan that is easily rechargeable. Some fans can even mist your face. Amazon/Screenshot by CNET JISULIFE Handheld Mini Fan This chargeable, handheld fan is also a flashlight and a portable charger. Speed one can last up to 21 hours between charging and speed two can last up to 14 hours. $18 at Amazon 5. Sunscreen If you want to beat the heat, you first need to make sure your skin is protected. Wearing sunscreen should always be a priority if you're doing anything outside this summer. In addition to wearing sunglasses, a hat or UV protective clothing, sunscreen provides a shield to your delicate skin. Sunscreen provides protection from sun cancer, signs of sun damage and premature aging. You can try chemical, mineral or combo sunscreen. If you want a sunscreen that won't leave a white cast, look for a product with a light serum. If you have acne-prone skin, use a sensitive mineral or combo sunscreen. Amazon/Screenshot by CNET Neutrogena Mineral UltraSheer Dry-Touch Sunscreen Neutrogena Mineral UltraSheer Dry-Touch is lightweight, clean and contains SPF 30. It is water-resistant for up to 80 minutes. $9 at Amazon 6. Countertop ice machine There is nothing better than an ice-cold drink on a hot day. A countertop ice machine can bring the ice directly to you. You can add ice to your water or store beverages and take them with you; a countertop ice machine can be transported from one place to another. Take it camping orbring it to an outdoor party. You can have cold ice handy as long as you have access to an outlet. Amazon/Screenshot by CNET Igloo Portable Electric Countertop Ice Maker This Igloo ice maker can make ice in two different sizes. Just add water, select your ice size and ice will be ready in 7 minutes. There are multiple self-cleaning settings. $95 at Amazon 7. Cooling pillow When sleeping cool, using a fan, AC or light pajamas might be your go-to solution. However, changing your bedding is another easy fix. A cooling pillow is designed not to retain any body heat and to provide as much breathability as possible. Some cooling pillows even have a cool-to-the-touch cover. Pillows made of materials such as non-perforated and non-gel memory foam trap heat and will only make you hotter at night. Look for cooling pillows made of latex, foam, silk, cotton or bamboo. Note that the pillowcase you use may affect the cooling sensation of any pillow. I recommend looking for a silk, satin or light cotton pillowcase to accompany your cooling pillow. 8. Neck fan Why hold a fan in front of your face when one can sit on your neck? If you're working outside or have your hands full, a neck fan is practical. Shaped like headphones, neck fans wrap around the neck and both sides blow up toward the sides of your face and back of your neck. It's perfect for sitting inside without AC or working under the sun. Amazon/Screenshot by CNET ASNUG Neck Fan The ASNUG Neck Fan is blade-less, meaning that it won't snag hair, fingers or clothing. It has three settings and is rechargable via USB. $27 at Amazon 9. Cooling sheets Similar to cooling pillows, cooling sheets can help dissipate your body heat. Cooling sheets are never made with materials like flannel or heavy cotton that trap heat. The best sheets for the summer will be made with bamboo, cotton, silk, Tencel, linen, polyester, microfiber or lyocell. For optimal summer bedding, switch to cooling sheets, a cooling comforter, a cooling pillowcase and a cooling pillow. Amazon/Screenshot by CNET Sheets & Giggles Sheet Set These temperture-balancing, lyocell sheets come in Twin, Twin XL, Full, Queen, King, California King and Split King sizes. Each set includes one flat sheet, one fitted sheet and two pillowcases. $190 at Amazon 10. Cold facial mask A fun way to cool down is to use a cold facial mask. While I don't recommend wearing this outside, a cold compress can help calm hot, sweaty skin and bring down your internal temperature after being outside in the sun. Similar to cold rollers or certain eye creams, a cold face mask can even help depuff eyes. And if you are prone to migraines, a cold facial mask can aid a pounding headache.
