Do men and women have different circadian rhythms?
New research may provide answers as to why some people tolerate being awake at night better than others.
Using surgically implanted sensors, researchers have for the first time been able to measure precisely what happens in the body of the moose during the changing seasons. Their body temperature and pulse are at their lowest in early spring - when conditions are the toughest.
An American brain researcher warns that we may already be "perilously close" to crossing ethical boundaries. At the same time, research on so-called mini-brains can provide great opportunities to unlock some disease mysteries.