You may always pay attention to hunger （饥饿）. Hunger has many different causes, according to Dr. Monique Tello, from Harvard Medical School.
The first cause may be a medical problem. " If a person always feels hungry and can't put on weight or even loses weight, he should go to the hospital. For people with Type I diabetes（糖尿病）, their body isn't able to process sugar. They eat a lot, but still lose weight and they feel terrible. " Tello said.
If it isn't a medical cause, the problems could be in the head. It's reasonable to be hungry every three to five hours. However, it's possible for you to eat often and a lot after watching food advertisements on TV or social media （媒体）. Also, the more you eat, the larger your stomach gets, and the more you want to eat. A person's state （状态）of mind can play a role. too. Research has shown that stress can increase levels of hunger hormones （激素）Pressure and worry drive people to look for food in the fridge when they're no truly hungry.
Another reason may be the lifestyle. Sometimes the reason why a person is always hungry is that he eats too little, exercises too much, or both.
So, how to solve the problem? There are three ways to solve it. First, reduce （减少）your time on watching food advertisements on TV and social media. In addition, say no to food if you're not really hungry. Finally, change your diet by eating more food high in fiber （纤维）, protein（蛋白质）and healthy fats.
| Topic：Paying attention to | ||
| Fact | Some people always feel hungry | |
| Causes | A medical problem | *Eating a lot, but stillweight. |
| The problems in the | *Watching food advertisements on TV or social media. | |
| The lifestyle | *Eating too little, exercising too much, or both | |
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| *Spendingtime on watching food advertisements. | |
