It doesn't feel right. In the last two months, I went to school six days a week, at 6 speed, 10 minute, 8 speed, 156 speed, and then 10 minute, 4 slopes. The heart rate is around 160, and 80kg may vary from person to person, but aerobic exercise with a heart rate above 160 will be effective. If there is nothing wrong with your body, I will teach you a simple method to judge whether you are sweating or not.