The Norwegian University of Science and Technology (NTNU) Apr 15 2026 At this time of year, many people make an extra effort to establish good exercise routines. We know that exercise is good for our health, but it can still be difficult to get started and maintain good habits. The health authorities' recommendation is to exercise for at least 2.5 hours, and preferably 5 hours, per week. For some people, this may feel just a bit too much to take on. However, research results from the past 20