The nation has spent the past weeks glued to the sports coverage. Now the government needs to capitalise on the interest to overthrow our sedentary habits, says Sam Murphy
Even though physical inactivity is a leading risk factor for premature death, people in the UK are less active than those in almost every other country, says Luisa Dillner
Can we measure wellbeing scientifically? Economist Richard Layard, supporter of the new national happiness index, believes we can; philosopher Julian Baggini is having none of it