The benefits of exercise for the body can’t be overstated, but big questions surround the advantages of timing workouts to maximise their effect on weight loss. In 2023, researchers from the Karolinska Institutet in Sweden found that exercising in the morning “increases fat burn compared to working out in the evening”. The findings in mice may not mean much for humans, however. “Contrary to popular belief, it doesn’t matter when you exercise. It is all personal preference,” said Jess Hillard, Warrior’s leading nutritionist. “The only effect of timing exercise will have on the body is mental cl…