I'm worried about developing deep-vein thrombosis from all these long-haul flights. Any suggestions?

You could try a pair of Scholl's flight socks which claim to improve blood flow which helps prevent the risk of circulatory problems. The Aviation Health Institute estimates that as many as 30,000 Britons may be affected by flight-induced blood clots each year and Scholl's are the only flight socks to receive their official approval.

How do they work?

They are designed to aid the movement of blood by providing the extra support that leg veins may need to ensure correct circulation.

Am I going to look silly?

No, they look like ordinary elasticated socks and come with simple instructions. You need to ensure there are no wrinkles and they are pulled up to just below the knee and should always be worn on both legs.

Expensive?

£11.95 from Boots, Scholl Total Footcare Centres and most pharmacies.

For more details check out www.schollflightsocks.com