Aerobic exercise to 1 hour is enough. Don't worry about how much sweat you have. The key is to get enough exercise.

It's no use sweating more to lose weight.

After sweating a lot, you have only two choices: to drink water or not to drink water. If you drink water, your weight will come back. If you don't drink water, the cells will dehydrate and may faint after waking up to drink water.

Aerobic exercise for 40 minutes should have some effect, but it won't be obvious. It takes at least 30 minutes for exercise to start burning fat. But aerobic exercise will have a great influence on your body. Even if you are not much thinner, you will be smaller in the mirror. Because the meat is tight.

I wonder if you have learned anything about inertia in physics. Blood flow is accelerated during exercise, and it will take some time for blood to return to its original circulation speed after stopping exercise. You suddenly squat down like this, causing severe congestion in your brain, and of course you will feel hot all over. It has a very bad effect on the body.