In fact, for the elderly, their bones are not as good as those of young people. In other words, if you do some strength training, it is likely to lead to local fractures or fractures, which violates the purpose of the exercise itself. In contrast, aerobic endurance exercise such as brisk walking will have a better effect, so it is not that the better the exercise effect, the better it is suitable for everyone, and it should be done according to different personal circumstances and age groups. Just like losing weight, those training camps generally recruit people under 40 and over 40, and they basically don't recommend you to lose weight again, because that intensity is likely to cause physical problems.