Nobody will give an unambiguous answer, at what hours it is better to go in for sports. It depends on many factors, which only the person can personally take into account.
Wellness
If there is a desire to do physical exercise simply to improve your body and increase muscle tone, then any time will do for this. Athletes are engaged in the morning and evening! In case the goal is a general improvement of the body and a small correction of the figure, both are equally comfortable.
Weight Loss
Another thing, if you are interested, when it is better to go in for sports in order to lose weight. In this case it is usually considered that it is better to practice in the evenings. Plus, there are a lot of evening lessons: a person has a lot of free time, and after all, for example, to burn fat, doing on a treadmill or on an exercise bike, it takes at least 40 minutes. In addition, it is necessary to study at least 3-4 times a week. It is more convenient to plan for training your evening time, and not the morning.
Of course, if there is no time in the evening, but there is a morning - please, you can do it in the morning. It's better than not doing anything at all. After training, it is advisable to refrain from food. In the morning you need to eat 15-20 minutes, otherwise your head will spin, and the muscles will become hungry, because the metabolic processes in them are in full swing. But in the evening it is worth not to eat. This will enhance the effect of exercise.
Features of the body
In addition, the question of when to exercise better: in the morning or in the evening - depends also on the characteristics of the nervous system. Some people, after a good workout, take a warm shower and, tired and happy, fall asleep sweetly. Others are still spinning for hours, not finding a place in bed, since muscles require movement. It is clear that the first is better for evening classes, and the second is for the morning classes. In other words, it's up to you yourself to decide how much better to go in for sports, focusing on the characteristics of your body, the way of life and the purpose of the classes.