Living a healthy lifestyle is important and will ultimately prevent acute and chronic diseases. This is quiet easy to achieve as you need not have to take all kinds of supplements or spend hours working out at a gym. All it takes is some independent thinking such as separating the truth from non truth on current literature and advice.
You cannot change your lifestyle over night and expect a miracle the following day. This is something you have to do by taking small steps at a time and setting goals for yourself. Once you have achieved one goal, then move onto the next goal and so you go and eventually living a healthy lifestyle will become second nature to you.
A good place to begin and one of the most important factors is eating correctly. Make sure you are following a well balanced diet that contains loads of fruit and fresh vegetables, whole grains and that you are getting the required amount of vitamins and minerals daily. Avoid gaining weight try and maintain your ideal weight. Don't eat junk food or drink fizzy drinks as these are fat packers. If you are unsure about what foods to eat and how much to eat there are excellent books as well as loads of info on the net.