1 is very likely.
In my personal opinion, in fact, sports are very important to each of us, whether it is primary school students, junior high school students, middle-aged people or the elderly. We insist on doing necessary exercise every day, which is of great benefit to our health. But if we exercise too much, it is likely to cause serious muscle or bone damage.
Beyond sb.' s tolerance
We all say that exercise is very good for the body, but if there is no regular exercise, it is not good for the body, so we must pay attention to the ways and methods of exercise. Of course, the difficulty of exercise should not be too high, and the amount of exercise should not exceed the range we can bear. If we can't bear this kind of exercise, then our bodies will not be able to bear it, and at the same time, it will cause a lot of muscle damage, and the next day we may have backache and backache.
So we should pay more attention to this problem in our daily life. For everyone, it is good for us to understand this problem, and we should make corresponding preparations before exercise, so as to prevent the phenomenon of strain during exercise. The above are some related understandings I have summarized on this issue, and I hope these will be helpful to everyone.