NOT ONLY do smiles reflect happiness, they can even induce it, says psychologist Paul Ekman of the Human Interaction Lab at the University of California (Science, Vol 262, No 5132). However, not

IT SEEMS hard to believe, but the noiseless sport of paragliding can lead to avalanches and landslides. Swiss researchers found paragliders scare mountain goats into the forests downhill. The hungry

If you're worried about your heart, there's good news and bad. First the good: there is strong evidence to support the theory that a couple of beers or glasses of wine daily help to prevent coronary

YOUR SALIVA may give a clue to your personality, says James M Dabbs, professor of psychology at Georgia State University in the US. Dabbs is trying to establish whether a relationship exists between

CHINA and the US have signed a memorandum of understanding (MOU) to enforce the UN ban on drift-net fishing in the North Pacific. The MOU is the first of its kind since the ban came into force on

Imagine a gear only three hairs wide. Difficult? Not for Paul Christensen, president of Potomac Photonics Inc of Maryland, USA, who carved a miniscule gear into a flat diamond surface using a laser

IF YOU are reluctant to leave bed on a dark, winter morning, stay right in there. People who wake up early in winters might be cutting short their required sleep, inviting unforeseen health problems

OIL-EATING bacteria, useful in cleaning up slicks, will soon have water wings, helping to keep them afloat in water. Using gene-splicing techniques, researchers at the University of Massachusetts,

If there is one thing a mouse cannot stand, it is the smell of other mice. Male mice with high levels of testosterone -- a male sex hormone -- mark their territories by secreting an oil in their

DON'T KEEP guns at home for the temptation to use them may be too strong to control. According to a recent US study, firearms kept at home increase by three times the risk of murder by a family