Air
Air is crucial to our health. Without air for only a few minutes we would not be able to survive. Pure air strengthens your immune system and increases cellular resistance to infections while aiding learning and giving relaxation.
In the morning step outside and breathe deeply, then expel all the air in your lungs. Repeat this about 3 to 4 times. This will increase the oxygen levels of the cells and thereby detoxify, repair and rebuild the body functions. Have fresh air ventilating in your home day and night, even in the winter you should have a window open in your room to ensure a good nights rest. Exercise in the open air to promote good circulation.