One in 12 deaths could be prevented with 30 minutes of physical activity five days a week. That’s the conclusion from the world’s largest study of physical activity, which analysed data from more than 130,000 people across 17 countries.
At the start of the study, participants provided information on their socioeconomic status, lifestyle behaviours and medical history. They also answered a questionnaire about the physical activity they complete over a typical week. Participants were followed-up at least every three years to record information about cardiovascular disease and death for almost seven years.
Over the period studied, Scott Lear, from McMaster University in Canada and his colleagues found that 150 minutes of activity per week reduced the risk of death from any cause by 28 per cent and rates of heart disease by a fifth.
Being highly active was associated with even greater benefits: people who spent more than 750 minutes walking briskly …