First of all, I think what Cecilia Cheung will do is to take care of his skin. Most stars do skin care. On the one hand, this concern is reflected in their daily care. They will choose cosmetics suitable for their own use according to their skin types. They have a professional makeup artist and should be aware of their skin condition. They will also tell them which lotion to use at which age and which is more effective. They should usually do a lot of care on their faces, such as applying masks and essences. In addition to this daily care, they also regularly go to beauty salons to do certain skin care, so their skin looks not so different from when they were young, just because they are well maintained.
The second point is that Cecilia Cheung will definitely exercise regularly. Exercise is an important secret to keep a person's figure and face value. Cecilia Cheung should also go to the gym often, because someone once photographed Cecilia Cheung in the gym. So I think the secret of Cecilia Cheung's maintenance is that she will often exercise, go to the gym to exercise herself and exercise. In this case, her figure must be well maintained and her skin is relatively good.
The third secret of maintenance, I think, may be to stay happy. Cecilia Cheung may be relatively free from any economic problems. It is very happy to try to keep her mood in life, and there is nothing particularly troublesome to make her happy. I think this is also the secret to keep her face value.
In addition, it may be that eating habits and daily life should be kept regular.