When people are jumping violently-aerobic exercise, oxygen can't keep up, and the body lacks oxygen, which leads to weakness and dizziness. Check your heart rate. Don't cross the line.

Slowly increase the amount of exercise, and the body has an adaptation process.

You are weak. Are you anemic? Exercise can't be tolerated.

Sweat more, consume more, supplement nutrition in time and get enough sleep.

In fact, walk fast until you sweat-exercise has the same effect.