Blood tests reveal why astronauts get constipated in space
Spaceflight may dramatically change the gut within weeks, causing bacteria to break down more protein as food moves more slowly through the intestines. The shift could help explain astronaut...
View ArticleDiabetes study finds keeping blood sugar too steady may come at a price
People with diabetes reported better quality of life after days when their glucose stayed largely within a healthy range, even when levels fluctuated more than usual. The unexpected finding suggests...
View ArticleScientists just discovered what coffee really does to your gut and brain
A new study suggests coffee may influence mood and brain function by changing the activity of microbes in the gut. Both caffeinated and decaf coffee were linked to lower stress, depression, and...
View ArticlePomegranate compound improves heart function by up to 80% in study
A compound the body can make after eating pomegranates, walnuts, and some berries improved measures of heart function by up to 80% in animal models of a difficult-to-treat form of heart failure....
View Article160-million-year-old proteins show surprising power against superbugs
Scientists resurrected antimicrobial peptides from mammals that lived millions of years ago and found that some were more potent against drug-resistant bacteria than modern human versions. These...
View ArticleScientists found a surprising driver of Alzheimer’s outside the brain
Scientists found that immune cells contributing to Alzheimer’s-related brain damage may be activated in lymph nodes outside the brain before traveling into the nervous system. Blocking this pathway in...
View ArticleResetting the body clock could help the brain recover after stroke
Strengthening the body’s natural daily rhythms helped mice recover after stroke by improving the brain’s waste-clearing system and reducing lingering inflammation. The approach worked even when...
View ArticleGlucosamine, a popular joint supplement, linked to faster Alzheimer’s...
A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint...
View ArticleWhy rheumatoid arthritis pain may persist even when inflammation is under...
Pain and fatigue in rheumatoid arthritis can persist even after inflammation improves, with depression, poor sleep, obesity, smoking, and chronic pain potentially helping sustain symptoms. Researchers...
View ArticleAtrial fibrillation patients saw 69% lower risk with common blood thinners
Direct oral anticoagulants cut the risk of serious clinical events by 69% in atrial fibrillation patients with an intermediate risk of stroke, according to the randomized SINGLE-AF trial. The benefit...
View ArticleOne CRISPR treatment cut “bad” cholesterol in half for a full year
A single dose of an experimental CRISPR therapy cut LDL cholesterol and triglycerides by about half in patients with difficult-to-treat lipid disorders. The reductions were still present one year...
View ArticleScientists say house cats could help unlock better cancer treatments for humans
Scientists have mapped the genetics of cat cancer on an unprecedented scale and found surprising similarities with tumors in humans. The findings could help bring precision cancer treatments to cats...
View ArticleZepbound and Mounjaro may turn on the body’s calorie-burning brown fat
Tirzepatide, sold as Mounjaro and Zepbound, activated calorie-burning brown fat in obese mice, revealing a potential metabolic effect beyond appetite suppression. If confirmed in humans, the finding...
View ArticleREM sleep paradox: Dreaming may drain the brain’s energy even as fuel supply...
Scientists discovered a surprising energy paradox in the brain during REM sleep, the stage most closely associated with dreaming. Blood supply to the brain begins increasing even before REM starts, but...
View ArticleThat fresh cleaning smell could be filling your home with nanoparticles
Researchers found that scented cleaners can react with ozone indoors to create billions or trillions of invisible nanoparticles that can penetrate deep into the lungs. The pollution forms within...
View ArticleDon’t toss cannabis leaves: They may contain rare compounds with medical...
Scientists discovered rare flavoalkaloids in Cannabis leaves for the first time, along with dozens of other phenolic compounds that had never been reported in the plant. The findings suggest that...
View ArticleA major risk of breast cancer screening may have been overestimated for decades
A new analysis suggests mammograms may lead to far less breast cancer overdiagnosis than some earlier studies indicated. Researchers reexamined all eight major randomized screening trials and accounted...
View ArticleCRISPR could help doctors attack blood cancer without destroying healthy cells
Researchers used CRISPR to remove CD33 from donor stem cells, potentially giving doctors a way to attack aggressive blood cancers without destroying the healthy cells patients need after a transplant....
View ArticleThis “rare” autism-linked genetic disorder may be far more common than...
A major analysis suggests Phelan-McDermid syndrome, a genetic disorder closely linked to autism, may affect about 1 in 7,300 people and more than 45,000 Americans. Researchers warn that thousands of...
View ArticleScientists gave worms magnetic bacteria. They lived 43% longer
A magnet-producing bacterium extended the average lifespan of C. elegans worms by more than 43% while helping protect their neurological and intestinal health. Researchers traced much of the effect to...
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