How To Fix My English Grammar?

What would you do to fix this English essay?

• Could you please help me to fix this little English essay? it could  grammar mistakes, some unsuitable words or phrase, I am learning English  and practising  writing like a native English writer. thank you. ----------------------------------- Healthy beginning from heart In recent years, with the life’s level developing in our country, people  are easy to fall ill, such as hypertension, fat and heart disease,  caused by bad habits (i.e. smoking, sedentary lifestyle). Many young  adults often die suddenly which are resulted from heart related diseases  in current society, so The heart and blood vessels disease is longer  only belong to available for the aged and young adults should keep eyes  on it. Nowadays, the elite are busy making money, have a stressful lifestyle  and forget to take care their body. They always believe their bodies are  strong enough which cannot be ill. Once be illness onset, it could be  serious disease that hard to cure. All these diseases are contributed by  unhealthy lifestyle which eliminates our health in a imperceptible way.  So dangerous. Lack of vegetables, less exercise and smoking are risk factors in these  diseases. To prevent these diseases, such as hypertension, fat and heart  disease. you must take more exercise, keep from smoking and have a  regular diet. It’s an only effective way to prevent heart disease.

• Answer:

  replace "easy to fall ill"  with "prone to fall ill". Replace "such as hypertension, fat and heart disease"  by  "to such conditions as hypertension, obesity and heart disease" New sentence. "these conditions may be caused by bad habits (e.g. smoking, sedentary lifestyle).  Now that last sentence might be "Heart of blood vessel disease occur over long time intervals, so young adults should be aware of the risks and act accordingly". That will make it go more smoothly in standard English.