The best way to stay healthy and happy is relaxing. Take a deep breath and imagine yourself at the most beautiful places of the world.
The silent of the mountains and the pureness of the oceans will bring you away from the everyday's stress. To relax just sit back, enjoy the show, and have an experience that makes you feel happy and calm.
If you succeed to experience them vividly, you'll completely relax. Just surrender to daydreaming for five minutes, and you'll leave your current stressors behind. When you return you'll feel energized, refreshed, and calm.