Workouts that mix up a variety of intense exercises with brief recovery periods in between may help people lose more weight than chugging along at a steady pace on a treadmill or exercise bike, a research review suggests.

People who cycle to work have a substantially lower risk of developing cancer or heart disease or dying prematurely, and governments should do all they can to encourage more active commuting, scientists said.

For obese people who sit for most of the day, replacing some sitting time with standing, slow walking or slow cycling reduces average blood sugar across the day.