B-vitamins may slow onset of Alzheimer’s, study finds

Large doses of vitamins B6, B12 and folic acid reduced shrinkage of brain by 30% over course of two-year study

David Servan-Schreiber obituary

French-born author of a bestselling guide to the treatment of cancer

Young blood rejuvenates old brains

Mo Costandi: Imagine taking a pill that could slow down or reverse the decline in cognitive function that comes with ageing. That may one day be possible, if the results of a new study are to be believed

Chronic pain: the search for a killer

Millions live with chronic pain, but medicine has had little luck finding cures. Could a new range of painkillers give them hope at last, writes Robin McKie

Detox: flushing out poison or absorbing dangerous claptrap?

The alternative-medicine version of detox has real-world side-effects that outweigh its imaginary benefits

Vitamin pills can lead you to take health risks

Ben Goldacre: Trials show that people who think they've done something healthy, even if they haven't, smoke more and believe they are invulnerable to diseases

Mapping the body: the temple

It's the thinnest part of the skull, and also an area prone to skin cancer

Benefits of daily exercise are comparable to giving up smoking

Researchers estimate that persuading inactive people to take up light, daily exercise could have a similar effect on a population's mortality rates as a smoking cessation programme

Adding caffeine to sunscreen could guard against skin cancer

Caffeine may help protect against some skin cancers by promoting the destruction of cells damaged by sunlight

Let’s dispel the doubts – breast cancer screening saves lives

Response: If the disease is caught early, treatment options are less aggressive and more likely to be successful, says Chris Askew