Health & Medicine
- Health & Medicine
Alpha wave may affect sleep quality
A type of brain activity once considered diagnostic of wakefulness persists during slumber, and the more intense it is the more easily a person can be jolted awake.
- Earth
Low sperm counts linked to fetal effects
Low male fertility may partly stem from chemical exposures in utero, an anatomical study suggests.
By Janet Raloff - Health & Medicine
Body & Brain
Ibuprofen may help fend off Parkinson’s, plus bone boosters and smokers’ brains in this week’s news.
By Science News - Life
Good gene type for cancer bad for stroke
A DNA variant that helps prevent tumors may diminish the brain’s recovery after an interruption in blood supply.
- Health & Medicine
Half of adult males carry HPV
Human papillomavirus, a sexually transmitted pathogen that can cause cancer, shows up often in men and lingers for months, a study shows.
By Nathan Seppa - Earth
PCBs may impair fertility
A study of women undergoing in vitro fertilization finds reduced embryo implantation among women with higher levels of one type of the banned chemicals.
By Janet Raloff - Health & Medicine
How brains guesstimate
Experiments show how the human mind lowballs moving objects’ speed when information is lacking.
- Health & Medicine
Memories Can’t Wait
Researchers rethink the role of amyloid in causing Alzheimer’s
- Chemistry
Mad cow-type diseases lie in wait
Prion infections build quickly in the brain then pause before killing, new research suggests.
- Health & Medicine
News in brief: Body & Brain
Baby's first bites make a big impression, and so do European biomedical journals, in this week's news.
By Science News - Health & Medicine
Tired, sure, but is it from Lyme disease or chronic fatigue?
A scan of proteins in spinal fluid reveals distinct signatures for these two conditions, offering hope for better diagnosis and possibly treatment.
By Nathan Seppa - Humans
Mafia informants fail acid test
Tests of sulfuric acid on pig carcasses cast doubts on Mafia claims of dissolving murder victims in a matter of minutes.