Longevity workouts are trending — here’s why the Norwegian 4x4 method is the 'Scandinavian secret' to building strength and endurance

Walking workout man and woman walking up stairs.

We all want to get stronger and fitter without spending hours on our exercise routine, which is why the Norwegian 4x4 workout method could be your new fitness obsession.

It was first developed by researchers at the Norwegian University of Science and Technology and is touted as a science-backed way to boost cardiovascular fitness and improve VO2 max.