Writing: Unhealthy Lifestyles

Dear Members, if you don't mind, I'd like to ask you to correct my own sentences below. Thank you so much.
People eat to live, work to get food, clothes, shelters and so on. They sleep to fufil the biological needs in their bodies. But, if eating, sleeping and working are out of balance, it wil become an unhealthy lifestyle.
If a person eats fatty foods, over-ripe fruits and unwell-cooked meat, he or she will fall sick. This is an unhealthy lifestyle.
Smoking, drinking and chewing betel can seriously damage our health. So, we should stay away from them. Gambling and playing games for long can also break down our health. Thus, we should keep away from them. Having a bath in late evenings can make us ill. This is an healthy lifestyle, too.
Most people go to bed late and get up from bed late. When we don't get enough sleep, we will feel dizzy. Then we cannot do any work actively. This is an healthy lifestyle. Everyday we work from day to night. That is why we don't have time to take physical exercises. This can badly harm our health. This is the worst unhealthy lifestyle.
Moreover, personal hygine is very important for one's health. If we let our hair or nails so long, the germs will attach us and we may have disease from them. If we live in dirty places or sleep in dirty rooms, we are likely to suffer from some kinds of skin diseases. Accordingly, we must care everything on our food, drinks and lifestyles to be healthy. In short, all the facts mentioned above are unhealthy lifestyles.