You're eating well, taking your vitamins and exercising regularly, but you're still always tired. The missing piece of the puzzle may be as simple as lack of adequate sleep.
Sleep is crucial to good health.
Sleep is our time to mentally and physically refresh and rejuvenate, to recharge our energy batteries with enough power to get us though the following day. Sleep is the time when the body repairs the damage done to our cells that day. It is also very important for strong immune function. Two studies with healthy volunteers demonstrated suppression of immunological function after one night of modest sleep deprivation. The activity of certain white blood cells and the production of chemicals essential for immune system performance significantly decreased.