Eat healthy foods: Avoid junk foods and prefer eating fruits and green leafy vegetables every day. This will leave you feeling generally more energetic and happy. Replace unhealthy snacks like a chocolate bar containing lots of calories, boasted with a piece of fruit or perhaps some nuts but do make sure to treat yourself once in a while which is okay. Also avoid too many processed foods altogether. . Prefer eating apples, watermelons,papaya,grapes etc. the fruits which contain ultimate source of water.These fruits act as an enriched source for growing immunity system , skin clarity/glow, and enhances your eye-vision.