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Researchers find that bacterial vaginosis is really an STI

Researchers find that bacterial vaginosis is really an STI

For decades, bacterial vaginosis (BV) has been treated as a frustrating but routine infection—one that afflicts nearly a third of women in the U.S. and often comes back again and again for more than half of patients. But what if the reason for these relentless recurrences isn't just a quirk of the vaginal microbiome?
A groundbreaking new study suggests BV isn't just an imbalance—it's sexually transmitted. And the key to stopping it may not lie in treating women alone but in treating their male partners as well.
'One dominant risk factor… in our clinical studies was a regular partner,' says Catriona Bradshaw, an author of the study and a clinician at Melbourne Sexual Health Centre at Monash University. '[It] kept popping out and just smacking us between the eyes, and we got to a point where we thought 'we just have to do a partner treatment trial.''
Is bacterial vaginosis sexually transmitted?
BV occurs when the perfect storm of bacteria combines in the vagina. Unlike typical sexually transmitted infections (STIs), no single pathogen is responsible. But, it has long been suspected that these bacteria can be sexually transmitted.
'We've had evidence for many years that bacterial vaginosis might be a sexually transmitted infection, based on data that includes increased risk of bacterial vaginosis with increasing number of sexual partners, increased risk with sex without a condom, and other evidence,' says David Fredricks, a clinician and microbiologist at the University of Washington. 'Although this hypothesis has been out there for many decades, some limited studies of male partner treatment to eradicate BV associated bacteria have not met with success.'

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Supplements Boost Postmenopausal Serum Biomarkers
Supplements Boost Postmenopausal Serum Biomarkers

Medscape

time17 hours ago

  • Medscape

Supplements Boost Postmenopausal Serum Biomarkers

Postmenopausal women who took vitamin B 12 , fish oil, or flaxseed oil as dietary supplements had significantly higher levels of accompanying serum biomarkers than those who did not use these supplements, based on new data presented at American Society for Nutrition (ASN) 2025 Annual Meeting. Dietary supplement use in the US is common among older adults, but data on the health effects of dietary supplements remain relatively mixed, said presenting author Hannah T. Baillie, MS, RD, in an interview. Hannah T. Baillie, MS, RD 'One way to measure whether or not supplements could be getting to the intended targets in the body is to measure the amount of the supplement's nutrients in the blood. This could inform whether the supplements have their intended health effects in an objective manner,' said Baillie, a PhD student at the University of Washington, Seattle. To examine the associations between dietary supplements and higher serum concentrations of corresponding biomarkers, Baillie and colleagues enrolled 153 participants in the Women's Health Initiative in a 2-week controlled feeding study. The participants consumed an individualized menu, including a habitual diet, and continued use of their usual dietary supplements. After 2 weeks, the researchers measured serum vitamin B 12 , lutein plus zeaxanthin, and phospholipid fatty acids. In a multiple linear regression analysis, the geometric mean serum concentration of vitamin B 12 was 58% higher among women who used any type of vitamin B 12 dietary supplement than among nonusers ( P < .001). In addition, the geometric mean serum concentrations of phospholipid docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) ranged from 38% to 46% higher among users of fish oil or flaxseed oil supplements than among nonusers ( P < .0001). Use of dietary supplements containing lutein plus zeaxanthin had no significant impact on serum concentrations ( P = .72). However, individuals who used two sources of a dietary supplement containing vitamin B 12 as well as two different sources of supplementation with lutein plus zeaxanthin had significantly higher serum biomarker levels than either individuals who took a single multivitamin containing B 12 and lutein plus zeaxanthin or individuals who took neither ( P < .0001 for both). 'I was surprised by how many different supplements participants were taking; I expected it to be high, but one participant was taking 18 supplements per day,' Baillie told Medscape Medical News . 'I was also surprised by the lack of association between use of lutein + zeaxanthin-containing supplements and serum lutein + zeaxanthin concentrations,' she said. The negligible increases in serum concentrations with supplement use point to potential issues with absorbing or utilizing these nutrients from supplemental sources, she noted. The study findings highlight the need for clinicians to ask patients not only about the use of dietary supplements but also about the dose of those supplements, said Baillie. The researchers also looked at serum concentrations in response to different doses of vitamin B 12 . 'We looked to see if those taking individual vitamin B 12 , just a multivitamin containing B 12 , both those supplements, or neither had different serum concentrations of vitamin B 12 ,' Baillie said. The researchers found that individuals taking > 1000 mcg in a supplement (an average amount in single B 12 supplements) did not have significantly higher serum concentrations than those taking both supplements (which would represent a larger dose). The unreliable and inadequate labeling of nutrient content on dietary supplement packaging was a main study limitation, Baillie told Medscape Medical News . 'Although the contents from labels of each dietary supplement were recorded into our database, prior research has shown there may be discrepancies in what is reported on labels and what each supplement contains,' she said. 'Additionally, labels are not consistent in how nutrient information is reported; for example, for fish oil supplements, omega-3 fatty acids are sometimes displayed as total omega-3 fatty acids, sometimes as EPA and DHA, and on other labels as total EPA + DHA,' Baillie said. This discrepancy makes consistent assessment of total nutrient intake a challenge and limits what conclusions that can be drawn from the data, she noted. Raising Awareness, Examining Intake 'Additional research investigating best practices for assessing nutrient intake from dietary supplements is needed, and this may require changes in the requirements around dietary supplement labeling,' Baillie told Medscape Medical News . Future research also should address assessing serum response among a more heterogeneous population, she added. Older women often take supplements without knowing their full effect, and the current study is important to help alert clinicians to ask patients about type, timing, and dose, said Christine M. Sager, MD, an assistant professor in the Department of Obstetrics and Gynecology at East Tennessee State University, Johnson City, Tennessee, in an interview. The findings were not unexpected, said Sager, who was not involved in the study. 'In clinical practice, we see similar elevations in B 12 when patients are taking B vitamins,' she said. 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When is the next full moon and does it really affect your health?
When is the next full moon and does it really affect your health?

Yahoo

time3 days ago

  • Yahoo

When is the next full moon and does it really affect your health?

The next full moon – known as the Strawberry Moon – will appear on 10 June, peaking the following morning. It's not named for its colour, but because it marks the start of wild strawberry season. Some people say the full moon messes with their sleep, mood or energy. And it's not just superstition – scientists are now looking into whether lunar phases can influence things like sleep, hormones, heart health and mental wellbeing. So, is there anything in it? Here's what we know – and how to feel your best when the moon rolls around. Despite the name, the Strawberry Moon doesn't actually turn pink. The nickname comes from Native American and European traditions that tied full moons to seasonal events – in this case, the strawberry harvest. You might also hear it called the Rose Moon, Honey Moon or Mead Moon, depending on where in the world you are. This year's Strawberry Moon will be particularly striking. It's the lowest-hanging full moon of 2025 in the Northern Hemisphere, which means it will look bigger and more golden as it rises at dusk. No telescope needed – just head outside and look up. The idea that the moon impacts our health has been around for centuries. While not all of it is backed by stats (and results are often mixed), scientists are starting to dig deeper into potential connections. Here's what some of the research says: A 2013 study from the University of Basel found people took longer to fall asleep, got 30% less deep sleep, and slept about 20 minutes less during a full moon, even in controlled rooms without light or clocks. More recently, researchers at the University of Washington found a similar pattern: people went to bed later and slept less in the days leading up to a full moon, no matter where they lived or whether they had electric lighting. It means since moonlight and bedtime habits were ruled out, something else might be at play, in this case, maybe our body's own rhythm responding to the lunar cycle. The average menstrual cycle lasts around 28 to 30 days – similar to the lunar cycle – so it's no surprise the two have long been linked. In fact, the word 'menstruation' shares roots with the Greek word for moon (mene) and the Latin for month (mensis). A small 1980 study did find that some women were more likely to start their periods around the new moon. But a large-scale analysis from 2017 by period-tracking app Clue, covering more than 7.5 million cycles, found no consistent link between period start dates and moon phases. Studies on the moon's impact on heart health have been mixed. A 2021 Japanese study found no link between moon phases and out-of-hospital cardiac arrests. However, a small 2013 study reported that blood pressure readings were slightly lower during full and new moons – suggesting a subtle effect on circulation. The idea that the moon affects our mood goes way back. The word 'luna' (Latin for moon) was even linked to emotional shifts in ancient times. Modern research, though, doesn't show a clear link. A 2017 study in psychiatry reported no significant rise in mental health issues during different moon phases. That said, research suggests people with conditions like bipolar disorder may be more sensitive to sleep disruptions, which, as we've seen, can happen around the full moon. So if you have mood changes, it's less likely due to the moon and could be more about the knock-on effects of poorer rest. Even if you're not usually moon-sensitive, there's no harm in building a few easy habits around the full moon, especially if it helps you feel more balanced and better rested. Wind down early. Try switching off a bit sooner in the evenings before the full moon. Even 15 minutes can help signal to your brain it's time to relax. Block out the glow. Blackout curtains or an eye mask can support melatonin production, the hormone that helps you sleep. Move your body. A little gentle exercise during the day (like walking or yoga) can help regulate sleep and release stress. Skip the caffeine – or cut back after 2pm. It can sneakily mess with your sleep, even if you feel fine. Track patterns: If you notices changes, jot down how you feel during different moon phases. You might be more in sync than you realise. Read more: Strawberry moon to rise over Britain next week, but it will be in an odd place (Yahoo News UK, 3-min read) What It Means to Get Your Period on a Full Moon (21 Ninety, 3-min read) What is 'moon breathing'? The ancient technique that promises to help you fall asleep (New York Post, 3-min read)

Exercising within 4 hours of bedtime is messing with your sleep
Exercising within 4 hours of bedtime is messing with your sleep

New York Post

time6 days ago

  • New York Post

Exercising within 4 hours of bedtime is messing with your sleep

Sweat dreams? While trying to get ripped is an admirable goal, new research reveals that doing it at night might just be muscling into your REM cycle. High-intensity workouts four hours or less before bed were linked to poorer sleep quality, later bedtimes and a higher resting heart rate. 3 While you may know that working out right before bed isn't good for you, this is the first and most extensive study to understand why. Pormezz – They were also associated with lower heart rate variability, meaning less variation in the time between heartbeats, which is generally a sign of stress or poor recovery. All of the markers indicate strenuous exercise that close to lights out puts the body into a heightened state of alertness, hindering the transition to restful sleep. Strenuous exercise is defined as activities that require a lot of physical effort — typically elevating the heart rate to 70% to 85% of maximum capacity — such as biking uphill, engaging in HIIT or playing sports. While experts have generally agreed that working out right before bed isn't good for you, this is the first and most extensive study to illuminate why. 3 This graphic from the study shows actual exercise timing and strain associations with sleep and nocturnal autonomic activity. Nature Communications (2025) 'Intense exercise in the evening can keep the body in a heightened state of alertness, which is why public health guidelines have previously advised against working out too close to bedtime,' lead author Dr. Josh Leota, a research fellow in the School of Psychological Sciences at Monash University in Melbourne, Australia, said in a statement. 'However, findings from controlled laboratory studies are less conclusive, with many suggesting that evening exercise doesn't necessarily disrupt sleep.' These studies relied on small sample sizes and laboratory settings, Leota said, and rarely involved exercise that made substantial cardiometabolic demands on the body. For his research, Leota and his team analyzed data from 14,689 people over the course of one year, which translated to a whopping 4 million nights of information. Participants wore a health-tracking wristband called WHOOP to monitor their sleep, exercise and heart health. The findings were adjusted for factors such as gender, age and general fitness level, lending further credibility to the study's conclusions. 3 The study found that doing high-intensity workouts four hours or less before bed led to poorer sleep quality, later bedtimes and a higher resting heart rate. oneinchpunch – The results were published recently in the journal Nature Communications. Studies indicate that exercising in general is good for sleep, with some researchers reporting that short, light workouts before bed can help you sleep longer, lower blood sugar levels and potentially live longer. So, if you do find yourself wanting to work out a couple of hours before bed, Leota suggests choosing 'brief low-intensity exercises, such as a light jog or swim, to minimize sleep disruption and allow the body to wind down.' Or, for added gut health benefits — just take a fart walk.

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