The five habits that can add more than a decade to your life

What if you could extend your lifespan with just a handful of behavioural changes? "The five healthy habits were defined as not smoking; having a body mass index between 18.5 and 25; taking at least 30 minutes of moderate exercise a day, having no more than one 150ml glass of wine a day for women, or two for men; and having a diet rich in items such as fruit, vegetables and whole grains and low in red meat, saturated fats and sugar." Ian Sample explores in the Guardian.