All articles tagged with #medical research
A large study suggests that the optimal nightly sleep is about 6.4 to 7.8 hours. Sleeping too little or too much is associated with accelerated aging across multiple organs, and the piece offers tips to help people hit the “just right” amount.
New research shows hormones shape how we hear, with men showing earlier, gradual decline and women experiencing monthly auditory fluctuations and menopause-related changes; the study calls for sex- and hormone-aware, holistic research approaches to improve accurate diagnoses and personalized hearing care.
A phase 1 trial at Siteman Cancer Center shows a personalized neoantigen DNA vaccine (GNOS-PV01) for glioblastoma is safe and elicits robust immune responses; among nine patients, about two-thirds had no progression at six months and two-thirds were alive at one year, including a long-term recurrence-free survivor, indicating potential benefit and the need for larger trials.
A growing body of research shows the thymus—an immune organ behind the breastbone—plays a central role in immune development, aging, and cancer risk, prompting efforts to rejuvenate thymic function to promote longevity and disease prevention.
A large study of about 1,600 kidney stone formers found that simply increasing daily water intake did not significantly reduce stone formation, as participants failed to reach recommended urine-output targets; experts still advocate aggressive hydration for prevention, but the findings are inconclusive and hydration alone may not prevent stones.
Tests that claim to reveal your biological age (often via epigenetic clocks) are booming, but scientists warn results vary widely, aren’t FDA-approved for personal health decisions, and can mislead individuals or worsen health disparities; these clocks are more reliable for population studies than for individual diagnosis or guidance.
A Washington Post Well+Being study finds that rapamycin, a longevity drug, may blunt the health benefits of exercise, with older adults taking the drug showing less strength and functional gains from training than those on placebo, suggesting off‑label use for lifespan extension could impair muscle adaptation via the mTOR pathway.
The Trump administration is preparing to move marijuana from Schedule I to Schedule II, a change that would allow more medical research by the DEA and scientists. The plan would begin with an administrative hearing, and Trump has said the move is not federal decriminalization. Biden-era guidance had suggested Schedule III as an alternative, and polls show growing public support for loosening restrictions, though current penalties and federal status would largely remain unchanged.
Researchers studied over 1,400 people and identified a 'golden zone' for bowel movement frequency—one to two times per day. Staying within this range may reflect gut health and lower risk of hidden health problems, while persistent deviations (too few or too many bowel movements) could signal health issues and potentially relate to longer life expectancy; the article cautions this is not medical advice and to consult a doctor with concerns.
A Washington Post Well+Being piece reports an Annals of Neurology study finding people with chronic back pain process sounds more intensely, suggesting amplified sensory processing in the brain. fMRI showed heightened responses to unpleasant noises, and pain-reprocessing therapy produced modest reductions in sound unpleasantness for some patients.
A Cell study in mice finds that exercise strengthens the brain’s protective blood-brain barrier via a liver-released protein, improving memory and learning in a mouse model of Alzheimer’s disease; researchers hope this mechanism translates to humans.
J. Michael Bishop, a microbiologist who shared the 1989 Nobel Prize for discoveries on cancer-causing genes known as oncogenes, died at 90 in San Francisco; he later served as chancellor of the University of California, San Francisco.
Novartis settled a Maryland federal suit with Henrietta Lacks’ estate over profits tied to HeLa cells, the 1951-derived line taken without Lacks’ consent that underpins countless medical advances; terms are confidential. It marks the second settlement the estate has reached with a biotech company after Thermo Fisher, as the estate sought full net profits from commercializing HeLa. Johns Hopkins says it did not profit from the cell line, though many firms hold HeLa-based patents. The Lacks family also has ongoing lawsuits against Ultragenyx and Viatris, with potential for more filings, highlighting ongoing debates over consent and benefit-sharing in medical research.
Some scientists are exploring whether avoiding environmental exposures before conception and in early life—the so‑called 'trimester zero' window—could lower autism risk in some children. While still in early stages, obstetricians like Jeanne Conry point to a 1,300‑day window (from preconception through a child’s second birthday) during which nutrition and lifestyle may influence autism risk, suggesting potential, non-guaranteed prevention rather than definitive outcomes.
A new study reports that blood tests can help build a rough 'clock' for Alzheimer's, potentially predicting when symptoms will emerge. While not precise enough to map an individual trajectory, the approach could improve early diagnosis and inform preventive treatments.