What the science says about how to get active (and make it stick)

As parks and gyms fill with people hoping to make 2024 their year
of fitness, Ian Sample speaks to Martin Gibala, professor of
kinesiology at McMaster University in Canada, about how much
exercise we should be doing, the benefits of interval training, and
how to make a new regime stick. Help support our independent
journalism at theguardian.com/sciencepod