Wildfire smoke exposure may shorten lung cancer survival, World News
Exposure to wildfire smoke may increase lung cancer patients' risk of dying from their disease, particularly among non-smokers, but the effect may be mitigated by certain cancer treatments, according to a large California study presented at a major medical meeting on Saturday (May 31).
Researchers tracked more than 18,000 people with non-small cell lung cancer — the most common kind — between 2017 and 2020. Those living in neighborhoods with the highest levels of wildfire-caused air pollution in the year after their cancer diagnosis were more likely to die from the disease, they found.
Patients who inhaled higher levels of tiny particulate matter with a diameter of 2.5 microns or less that can penetrate deeply into the lungs had a 20 per cent greater risk of dying from lung cancer, researchers reported at the American Society of Clinical Oncology meeting in Chicago.
People with advanced Stage 4 cancer who had never smoked were especially affected, researchers found. Their risk of dying from cancer was 55 per cent higher if they were exposed to high levels of wildfire air pollution.
The study used advanced modelling to estimate daily air quality at patients' home addresses, based on data from satellites, weather models, smoke forecasts and air quality monitors.
The researchers also found that wildfire smoke exposure did not significantly affect survival of patients with Stage 4 lung cancer with a history of smoking who were treated with an immunotherapy drug.
"This surprising trend suggests that smoke-related changes in the body may interact with certain treatments," and more study of this phenomenon is warranted, the researchers said.
Wildfire smoke is more toxic than normal air pollution. Along with particles of soil and biological materials, it often contains traces of chemicals, metals, plastics and other synthetic materials.
"As wildfires become more frequent and intense in California and other parts of the US, we need targeted health strategies to protect cancer patients and others with serious health problems," said study leader Dr Surbhi Singhal of UC Davis Comprehensive Cancer Centre in Sacramento, California.
ALSO READ: Indians battle respiratory issues, skin rashes in world's most polluted town
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AsiaOne
3 days ago
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Wildfire smoke exposure may shorten lung cancer survival, World News
Exposure to wildfire smoke may increase lung cancer patients' risk of dying from their disease, particularly among non-smokers, but the effect may be mitigated by certain cancer treatments, according to a large California study presented at a major medical meeting on Saturday (May 31). Researchers tracked more than 18,000 people with non-small cell lung cancer — the most common kind — between 2017 and 2020. Those living in neighborhoods with the highest levels of wildfire-caused air pollution in the year after their cancer diagnosis were more likely to die from the disease, they found. Patients who inhaled higher levels of tiny particulate matter with a diameter of 2.5 microns or less that can penetrate deeply into the lungs had a 20 per cent greater risk of dying from lung cancer, researchers reported at the American Society of Clinical Oncology meeting in Chicago. People with advanced Stage 4 cancer who had never smoked were especially affected, researchers found. Their risk of dying from cancer was 55 per cent higher if they were exposed to high levels of wildfire air pollution. The study used advanced modelling to estimate daily air quality at patients' home addresses, based on data from satellites, weather models, smoke forecasts and air quality monitors. The researchers also found that wildfire smoke exposure did not significantly affect survival of patients with Stage 4 lung cancer with a history of smoking who were treated with an immunotherapy drug. "This surprising trend suggests that smoke-related changes in the body may interact with certain treatments," and more study of this phenomenon is warranted, the researchers said. Wildfire smoke is more toxic than normal air pollution. Along with particles of soil and biological materials, it often contains traces of chemicals, metals, plastics and other synthetic materials. "As wildfires become more frequent and intense in California and other parts of the US, we need targeted health strategies to protect cancer patients and others with serious health problems," said study leader Dr Surbhi Singhal of UC Davis Comprehensive Cancer Centre in Sacramento, California. ALSO READ: Indians battle respiratory issues, skin rashes in world's most polluted town
Straits Times
3 days ago
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Wildfire smoke exposure may shorten lung cancer survival
FILE PHOTO: Smoke rises from Edith Lake wildfire SWF076, which forced the evacuation of the nearby town of Swan Hills, Alberta, Canada in an aerial photograph May 28, 2025. Alberta Wildfire/Handout via REUTERS/File Photo Exposure to wildfire smoke may increase lung cancer patients' risk of dying from their disease, particularly among non-smokers, but the effect may be mitigated by certain cancer treatments, according to a large California study presented at a major medical meeting on Saturday. Researchers tracked more than 18,000 people with non-small cell lung cancer – the most common kind – between 2017 and 2020. Those living in neighborhoods with the highest levels of wildfire-caused air pollution in the year after their cancer diagnosis were more likely to die from the disease, they found. Patients who inhaled higher levels of tiny particulate matter with a diameter of 2.5 microns or less that can penetrate deeply into the lungs had a 20% greater risk of dying from lung cancer, researchers reported at the American Society of Clinical Oncology meeting in Chicago. People with advanced stage 4 cancer who had never smoked were especially affected, researchers found. Their risk of dying from cancer was 55% higher if they were exposed to high levels of wildfire air pollution. The study used advanced modeling to estimate daily air quality at patients' home addresses, based on data from satellites, weather models, smoke forecasts and air quality monitors. The researchers also found that wildfire smoke exposure did not significantly affect survival of patients with Stage 4 lung cancer with a history of smoking who were treated with an immunotherapy drug. 'This surprising trend suggests that smoke-related changes in the body may interact with certain treatments,' and more study of this phenomenon is warranted, the researchers said. Wildfire smoke is more toxic than normal air pollution. Along with particles of soil and biological materials, it often contains traces of chemicals, metals, plastics and other synthetic materials. 'As wildfires become more frequent and intense in California and other parts of the U.S., we need targeted health strategies to protect cancer patients and others with serious health problems,' said study leader Dr. Surbhi Singhal of UC Davis Comprehensive Cancer Center in Sacramento, California. REUTERS Join ST's Telegram channel and get the latest breaking news delivered to you.
CNA
21-04-2025
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What is dry brushing? Is this ancient massage technique that's back as a beauty fad worth trying?
It's not unusual for ancient beauty practices to return in a big way to modern popularity, with the help of social media and the famous names that are on it. One of them to do so lately is dry brushing, which is blowing up on TikTok yet again, thanks to celebrities such as Gwyneth Paltrow, Miranda Kerr and Alicia Keys, who all are known to be big advocates of holistic wellness and beauty. Dry brushing is a skin-brushing technique that's said to boost blood circulation and promote skin health. It originated from many ancient civilisations including the Egyptians, Greeks, Scandinavians, Indians and Chinese. Surely, there must be some reason for how it has stood the test of time – but is it truly beneficial for the skin and circulation, as social media deemed it to be? What are the risks and can everyone try it? Here's the low-down, as well as advice from a dermatologist. WHAT IS DRY BRUSHING? It literally means brushing the skin's surface with a dry brush – this is done on the body, over areas including the arms, legs and back. Dry brushing is used as a massage technique, and is thought to help exfoliate and detoxify the skin, improve blood circulation and lymph drainage. Some even believe that it helps improve the appearance of cellulite deposits under the skin. While some people may experience better skin texture and feel invigorated from the stimulation after dry brushing, much of the purported benefits from doing so have not been scientifically proven, noted dermatologist Dr Eileen Tan of Eileen Tan Skin Clinic & Associates. Dry brushing does come with certain skin risks, and may not be suitable for everyone. 'If one is really adventurous and keen to try dry brushing, it is crucial to acquire the correct technique so that it is performed safely,' she said. SELECTING A GOOD BRUSH Picking the right brush is of utmost importance – the bristles should be firm, but not so stiff and rough that they feel painful and scratchy on skin. There's no single standard for the ideal level of firmness, since this will largely depend on personal preference. Some people prefer a brush that provides an invigorating scrub, but the bristles should not make you feel like you have to tolerate the sensation when they move across your skin. It makes sense for those with sensitive skin to go for softer bristles, so that you can dry brush safely without irritating the skin. The handle on the brush is another factor for consideration. A long-handled brush can allow you to reach your back more easily, while a palm-held brush can provide a higher level of control so that you can better direct your brush strokes and apply the right amount of pressure. Can't decide which is better? Why not try both, since you might find each to be useful on different zones of the body. HOW TO DRY THE BRUSH PROPERLY Dry brushing should be done starting from the feet, moving up the body gradually (in a direction towards the heart) – this technique is thought to boost lymphatic drainage. It is best to do it on dry skin, with a dry brush, before your shower or bath, since washing post-brushing will allow you to rinse away any skin debris that is removed during the process. Start with long upwards strokes over the feet and up the legs, then circular movements across the torso, back and butt. Following that, apply long strokes over the arms, shoulders and decollete – you may also want to go over these areas with circular movements again for a more invigorating massage. Avoid areas with sensitive and thin skin, such as that on the joints of your limbs and the bust and groin area. The entire process should take around three to five minutes, unless you're planning to proceed at a very relaxed and leisurely pace. The key is to be gentle and not to press the brush bristles too hard onto the skin. Don't try to speed through your dry brushing ritual with overly vigorous and quick strokes, since this increases the chances of inflicting damage on the skin. While it is not unusual for the skin to turn a little red after dry brushing, the redness should fade quite quickly after the process. If it lingers or is accompanied by itching, irritation or a burning sensation, it means that you're brushing too hard, or you could be using a brush with bristles that are too stiff and scratchy. Finally, remember to always clean the brush with water and soap after dry brushing, and ensure that it dries thoroughly to prevent germs from breeding on the bristles and coming into contact with your skin. As for frequency, there are some people who dry brush daily, but this may be too much for many others. As a beginner, it's wise to start dry brushing just once or twice a week and see how your skin reacts to it. 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