The best days to do fitness
The right time to burn more (and get less tired) when exercising is after ovulation, around day 4 if you have a regular cycle.
In addition, your body reacts better to stress. It depends on the level of progesterone, the pregnancy hormone.
A group of young women who had a regular cycle underwent a physical test in the first week of the cycle and in the week after ovulation: sports performance was better in the second phase.
Physical activity during your period is not inadvisable. Of course, when the pain is severe, you don't want to go to the gym, but don't give up on exercise just because you're "on those days."

Studies confirm that sports can reduce cramps and the feeling of heaviness during the period of the cycle, because it favors the discharge of the uterus and the elimination of excess fluids.
In addition, it helps prevent premenstrual symptoms such as headaches and depression.
Mood improves in those who practice physical activity.

