Fantastic job! i tried to stay true to what was potentially written, but suggested more common verbiage.

Though the term "old people" is OK, it can be considered derogatory. I usually see Traditional Chinese Medicine capitalized, but I am not certain about that all the time. FYI - in scholarly writing, words are not abbreviated (use  " should not" instead of shouldn't).

It is better for older people to have breakfast late

"Early to bed and early to rise makes a man healthy" is an enduring motto to many older people. They get up between five and six in the morning to do exercises after a hurried breakfast. As a matter of fact, this has the potential to lead to gastrointestinal diseases. In the last paragraph I am not us if you meant "dry" or "dried ".

When sleeping, most of the organs are in a state of rest after a day's work so as to ensure performing normally in the following day. But the digestive system continues to work busily throughout the evening, tensely digesting and absorbing the food reserved in the gastrointestinal tract, and it won't rest until morning. In addition, it takes the intestines and stomach at least 2 to 3 hours to rest in the morning for recovery, due to the recession older people have with the functioning of  body fuction and digestive systems. If older people have their breakfast too early in the morning, this could obstruct parts of the intestines and stomach. In turn, this would burden the digestive system, more heavily resulting in older people becoming more susceptible to suffering from gastrointestinal diseases.

 Also, the human body is in its natural excretion period in the morning and the blood is turbid at that time. also The metabolite of the previous day needs to be cleaned immediately.If taking in food occurs too early, the excretion will be affected. Therefore, older people shouldn't have their breakfast too early.

As the Traditional Chinese Medicine experts have suggested, it is suitable for older people to have breakfast between 8:00 and 9.30 a.m.. They should also not get up immediately after awakening, but lay in bed for 15 to 30 minutes, and then get up and drink a glass of warm water to clean the rubbish that is in the intestines and stomach.

As far as experts are considered, it is best for older people to have warm and soft food which is easy to digest. therefore it would be suitable to have some porridge. It would be beneficial to add some lotus seeds, red dates, rhizoma dioscoreae and so on, to the porridge. It would not be good to have fried, dry, hard, or irritant food. Furthermore, older people shouldn't have too much breakfast in case it is too much to digest and leads to a decline of digestive function.