After we do exercise and fitness, our hearts will beat extremely fast. In the process of fitness, the body will disperse all the oxygen we need to all parts of the body. So your heart rate may be much higher than normal at this time, but when you stop exercising, your heart rate will slowly drop until it returns to normal speed.
When you are in good health, you will recover faster, but if you don't exercise for too long, or if you are in poor health and have poor cardiopulmonary ability, it will take more time to recover to a normal heartbeat. Therefore, it is entirely possible to judge the maintenance of your body through this.
Can't even do push-ups.
If you want to see your physical condition, you can measure it by push-ups, because push-ups can exercise the core muscles of your back, shoulders and arms at the same time. If you are in good health, it is easy for both men and women to do a few push-ups. Of course, it depends on individual differences, but if you can't do push-ups, don't doubt that you really need to start exercising. Doing push-ups is not very demanding, but you can't even do one, which shows that your upper limbs and core strength are too weak.