In the past, I was a healthy person, but now I'm not so healthy. I don't have exercise regularly and don't eat enough vegetables and fruits. I just like to sleep late, stay up late at night. When I was young, I thought it was cool to stay up late at night. But now as an adult, I know it's not good for my health.
A few years ago, one of my friends told me that he didn't eat breakfast every day because he felt he had no time to eat. I thought it was strange that he didn't have time to eat breakfast, because breakfast is the most important meal in a day. It can provide us with energy for our work and study. If we skip breakfast regularly, we will be bad tempered during the day, and our immune system will be weakened as well.

We all have habits. Some of them are good for us, like brushing our teeth or taking a multivitamin every morning. Others are bad for us, such as smoking cigarettes or eating too much junk food. It’s important to know the difference between good habits and bad ones so that you can maintain a healthy lifestyle.
Some bad habits, such as smoking and excessive drinking, are fairly obvious. They cause serious illnesses that can be life-threatening (like lung cancer and liver disease) or result in painful conditions that can lead to long-term disability (such as emphysema and arthritis). Other bad habits, like eating too much junk food or not exercising every day, aren’t as noticeable right away but can also take their toll on your health. Long-term effects include obesity, diabetes, and high blood pressure.
It’s never too late to change your bad habits. Most people don’t realize how much they eat each day until they begin recording everything they put in their mouths. This is why keeping a food diary is so important when you want to lose weight.