Cancer drugs at risk as plant species die off
Medicines for HIV and cancer could be lost because plants used in their preparation are facing extinction, experts have warned
Ask Leo
Leo Hickman: There are about seven million gym members in the UK: how much power could be generated by all those treadmills and exercise bikes?
Two wheels
Matt Seaton joins a swimming club.
Can you stay fit and strong as a vegan?
Her teenage son starts university next year, and she's worried that a vegan diet will expose him to colds and infections. Three experts try to boost his diet - and her confidence.
Bike doc
Matt Seaton: Everyone is different: inside leg, shoulder width, arm length etc, all have a bearing on bike fitting. Ideally, you should buy from a shop that will measure and fit you first, then tailor the bike accordingly.
Flab grab
Raj Patel illuminates the failures of the global food system in Stuffed and Starved, says Felicity Lawrence.
Global food crisis looms as climate change and population growth strip fertile land
. 'Ignorance, need and greed' depleting soil . Experts warn competition will lead to conflict.
Cycling holidays on the rise
Concerns over climate change, health and fitness and the glamour of the Tour de France are driving a huge revival in Britons taking cycling holidays, according to a report.