A styrene maleic anhydride 'plug' has few side effects and is reversible.

Scientists suggest a disorder that causes periods of ecstasy and depression is passed on through mothers.

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

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

Studies suggest smoking protects against diseases such as Parkinson's and Alzheimer's, but many scientists and funding agencies are not convinced.

GERMAN scientists say an understanding of car crashes could help childbirth specialists tell if a woman needs a Caesarean section (International Business Week, No 3327-657). The team of

THIS YEAR'S Nobel prize -- worth $825,000 -- for physiology and medicine has been awarded jointly to UK's Richard Roberts and USA's Phillip Sharp for their 1977 discovery of "split genes". The

Scientists are focussing on strengthening genetically the defence mechanism of mosquitoes so as to render them inhospitable to the malarial parasite.

Some scientists claim tumours might be formed because cells refuse to die and not because they multiply at a high rate.