Researchers have begun to appreciate the importance of copy number variation when considering the connections between DNA and disease.
Women in their late thirties and forties who have trouble sleeping are more than three times more likely to suffer sleep problems during menopause than women who have an easier time getting shut-eye.
This research could move the medical community one step closer toward effectively detecting concussion and quantifying its severity.
A measles outbreak in Arizona that originated at California's Disney parks is at risk of increasing dramatically in size as health officials keep tabs on 1,000 people, including nearly 200 children who could have been exposed at a Phoenix-area medical center.
The U.N. health agency said the three most affected countries - Guinea, Sierra Leone and Liberia - have reported fewer than 100 cases in the past week, for the first time since June.
For the first time, scientists have revealed a mechanism underlying the cellular degeneration of upper motor neurons, a small group of neurons in the brain recently shown to play a major role in ALS pathology.
The skull dates from around 55,000 years ago, fitting into the period when scientists had thought the migrants inhabited the area.
Evidence is rapidly growing showing vital relationships between both diet quality and potential nutritional deficiencies and mental health, a new international collaboration led by the University of Melbourne and Deakin University has revealed.
Cornell researchers have achieved this feat in rats by engineering human lactobacilli, a common gut bacteria, to secrete a protein called Glucagen-like peptide 1 (GLP-1).
The Food and Drug Administration (FDA) has approved for evaluating in people a nanoparticle-based imaging agent jointly developed at Washington University School of Medicine in St. Louis and the University of California, Santa Barbara, in collaboration with Texas A&M University.
Cells are incredibly complicated machines with thousands of interacting parts — and disruptions to any of those interactions can cause disease.
Killer T cells are one of the body's main lines of defense against pathogens.
Tuberculosis affects over 12 million people globally, and is usually treated with a course of four drugs over several months.
Scientists have determined how an enzyme essential for energy metabolism functions.
Millions of genetically modified mosquitoes could be released in the Florida Keys if British researchers win approval to use the bugs against two extremely painful viral diseases.
The World Health Organization has proposed reforms that could overhaul its structure after botching the response to the biggest-ever Ebola outbreak.
A top U.N. official in the fight against Ebola greeted just three patients at one treatment center he visited this week in Sierra Leone.
Scientists have long known that sleep, memory and learning are deeply connected. Most animals, from flies to humans, have trouble remembering when sleep deprived, and studies have shown that sleep is critical in converting short-term into long-term memory, a process known as memory consolidation.
A team of scientists based at Brown University has found that reducing expression of a fundamentally important gene called Myc significantly increased the healthy lifespan of laboratory mice, the first such finding regarding this gene in a mammalian species.
A new procedure can quickly and efficiently increase the length of human telomeres, the protective caps on the ends of chromosomes that are linked to aging and disease.
Eerie fluorescent blue patches of water glimmering off Hong Kong's seashore are magnificent, disturbing and potentially toxic.
Children under two years old can learn certain communication skills from a video.
It involves fostering a community of "good" gut bacteria.
A miniscule cluster of estrogen-producing nerve cells in the mouse brain exerts highly specific effects on aggressive behavior in both males and females.