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From the crisp mountain air to the thrill of carving turns on powdery slopes, skiing is an exhilarating winter sport. However, as thrilling as skiing can be, the sport is also associated with certain risks, particularly to the knee. Mr Deepu Sethi, leading specialist consultant orthopaedic knee surgeon, explains the most common ski-related knee injuries, discussing their causes, diagnosis, treatment, and prevention.

H. pylori look like little curved rods with a bank of structures called flagella at one end. The flagella beat like arms to propel the bacteria around the stomach. Around 40% of the UK population are infected by the germ and in approximately eight to nine out of ten people who have it, it does not cause any symptoms. However, if you do have it, is it curable? Here, London gastroenterologist Dr Aathavan Loganayagam explains.