Exercise is better in the morning if you have a stressful job, as mental fatigue can affect physical performance, says a new study.
Researchers at Bangor University found that people who are mentally fatigued and exercise reach the point of physical exhaustion sooner than they do if they are mentally rested before exercising.
Also, they found that even though being exhausted after work doesn't actually affect the muscles, it does make it harder for people to exercise so vigorously.