Should I wear a helmet on the ski slopes?

Michael Schumacher was wearing a helmet on the piste but was still badly hurt – and the statistics behind head injuries on the slopes are remarkably confusing. What's the right thing to do?

Should I watch more sport on TV?

Luisa Dillner: The excitement of watching sport raises your heart rate, so will more time on the sofa shouting at the football make you fitter?