The body and its organs function by energy, without which a person feels fatigued and drained.
To produce energy, the body's cells require healthy foods along with vitamins and minerals.
These are indispensable for metabolic processes in the production of energy.
Vegetables and grains contain a large quantity of these vitamins and minerals, the most important for cellular metabolism being the B complex.
Relaxing and getting plenty of sleep and rest is indispensable for the body to recharge its energy and thus be full of vigor throughout the day.