As a result, I was sore all over for the next few days. But I think that's mainly the result of not playing badminton very much and doing more activities.
You should donate whole blood. Red blood cells in whole blood are responsible for transporting nutrients. The human body once lost1/20-110 red blood cells, and white blood cells also decreased, so the ability to resist diseases will also decline.
Relatively speaking, the body is in a recovery period, and proper rest can make the body return to normal more quickly.
This is also the basis for China's "Blood Donation Law" to provide blood donation after six months. These six months should be based on the actual situation of people's physiological recovery.
If you exercise vigorously, it will definitely affect the recovery speed of your body. It's no problem to be young once in a while, but I hope you can avoid this kind of strenuous exercise again in the future!