A new study published in the journal Cell Metabolism has revealed that the time of day may affect the amount of fat burned during exercise.

The study, conducted by researchers at the University of California, San Francisco, found that exercising at certain times of the day can result in more fat being burned during exercise.

The researchers studied mice and found that those that exercised in the morning burned more fat than those that exercised in the evening. The researchers believe that this is due to the body’s circadian rhythm, which is the body’s natural 24-hour cycle.

The researchers suggest that this could be beneficial for those who are trying to lose weight, as exercising at the right time of day could help them burn more fat.

The researchers also suggest that this could be useful for athletes, as exercising at the right time could help them perform better.

The findings of the study could help to improve the effectiveness of exercise for people of all ages and fitness levels.