Good nutrition, a little sport and a lot of oxygen should help. Don't follow those retarded Western methods with coffee and vitamin pills. You may want to find a good nutrition mixture for your personal needs. Food is extremely important and unlike most think, good healthy food tastes great too. During the time I was able to eat Korean homemade meals every day, I had so much energy that even extreme sports could not wear me out. Spicy Kimchi, a lot of Korean rice, a hot soup usually without meat. Twice every day. But that is just my personal taste.

Have a good breakfast. Cereal or even jook/congee is perfect. Remember to rest when you can - a lie-down or nap after lunch/work will give you extra energy right through the evening.

First, have a good sleep the night before, and rest when you can( like Peachey's suggestion ). Second, have a good exercise habit. Third，a balance of a healthy diet( like Jura's suggestion).

Make sure you eat the right foods. Start the day with a good breakfast. It is the most important meal of the day. Make sure you have enough time to get the right amount of sleep :)

Hi, you need a balance of a healthy diet, at least a litre of water and about 30 minutes of exercise. A multivitamin tablet helps if your diet lacks fresh food.