Eating healthy is very important to living a healthy lifestyle, because your diet is what fuels your life. If you continue to eat junk food and drinks, then you are causing physical damage to your body. This damage will cause a shortage of energy and you will not be able to do the things you want to do.
Exercise is also very important for a healthy lifestyle, because if you are outside you do not feel good or do the things you want to do. When you move your different chemicals released into your bloodstream so you feel better. Exercise can help a lot through a tough day, as it can get a good start to the head today, or pick me up after a bad day.
I think the main way to live a healthy lifestyle is finding and keeping a balance between work and recreation. If you work too much, then your stress level is very high, and health and your happiness will be vastly reduced. But if you play too much, your stress is very high, because you are worried about how you pay your bills. If you have a balance between the two you have enough money to pay your bills, but still have enough fun that you reduce stress. If you notice things in your life, you will be able to live a healthy lifestyle.