If you want to lose weight better, run, but muscles may appear. Girls may not like it, and boys may not like it. You can also run with a load like I do now, with a load of 2 kg. 25 yuan, thank you! Add me Baidu HI if you don't understand! And the answer to 1 building is wrong. If you are a person who gets fat after drinking white water, you need to exercise. I have tried to eat less, but I have gained weight!
The answer on the second floor is not very effective either, because walking is a waste of time, and doing those exercises will never exceed 20 minutes!