Elderly people do not eat at night is harmful to health, first of all, easy to damage the stomach, and secondly, easy to induce hypoglycemia, but also lead to malnutrition. 1. Damage to the stomach: the most common danger of not eating at night is damage to the stomach, because hunger is easy to promote the excretion of gastric acid, thereby damaging the gastric mucosa, causing gastritis and gastric ulcer and other gastric diseases. 2. Induced hypoglycemia: the physical quality of the elderly is relatively poor, if you do not eat at night, it is very easy to appear hypoglycemia, and in serious cases may also faint. 3. Malnutrition: the elderly do not eat at night, can not absorb enough nutrients, resulting in malnutrition. Whether you are an elderly person or a young person, you need to eat three meals a day regularly to avoid adverse reactions.