Sex after 50

Headlines about STDs among older people skirt one of the last taboos – that it's not just the young who have fulfilling sex lives

Who wants to live for ever?

Studies show that a child born today can confidently expect to reach 100. But, as life expectancy rises by the day, does our happiness increase with it? Here, one man attempts to trace the secrets of longevity and finds that not everyone looks forward to a letter from the Queen

The golden touch

Gold injections can treat arthritis and silver coating fights hospital infections. Peta Bee reveals the surprisingly practical uses of precious metals in medicine

Holding back the years

Ageing is a disease that can be cured. This is the radical claim that has made biomedical theorist Aubrey de Grey a popular hero of gerontology - and a maverick among the science community. Tom Templeton meets the man who wants us to live for 1,000 years.