physiology

Fasting, eating only at certain times of day, and restricting overall calorie intake can collectively contribute to lifespan extensions in animals. Could the same hold true in humans?

A team of scientists has found that in mice, a cellular housekeeping pathway protects against a major cause of heart attacks and strokes.

A device designed by researchers at MIT can image the wearer’s internal organs for up to 48 hours, even as that person exercises, so long as they stay wired up to imaging equipment.

The cells signal to the brain how hydrating particular beverages are, but it’s not yet clear whether they play a similar role in humans.

Scientists say they have finally figured out why some people with severe malaria end up with dangerous hypoglycemia, also reporting that the condition starves the parasite into changing tactics from virulence to transmission.

An analysis of human data from the UK biobank also finds an association between Y chromosome loss and heart disease in men.

Ultraviolet radiation leads to secretion of an appetite-boosting hormone in male mice, but experts say it’s not yet clear whether the mechanism applies to humans.

Pairs of same-sex friends who reported strong connections when they first met had similar body odors, and body odor similarity predicted whether two strangers would hit it off.

An odorant found in the pee of pregnant mice—and in bananas—induces stress but also relieves pain in male mice, a study shows.

Results from a small sample of Indian males suggest that lean individuals with a history of malnutrition suffer from a distinct type of diabetes characterized by a defect in insulin secretion.

The inner ears of these miniature Brazilian frogs are too small to provide good balance while jumping.

This new book tells the fascinating story of plastic surgery’s unlikely origin on WWI battlefields.

An ear made from the person’s own cells was surgically attached in March, the company behind the technology says.

Endothermy was widespread among both avian and non-avian dinosaurs, a study suggests, so the metabolic strategy is unlikely to account for birds’ survival through the mass extinction event that wiped out their dinosaur cousins.