Imp of ENERGY SOURCES FOR HUMAN BEINGS
There are various sources available by which we can get energy, e.g Proper and healthy food, water, Enough sleep, good Sun light, Regular exercise and proper breathing.
Among all of above, proper Breathing which consist of Regular various pranayama, yoga and various manipulated breathing techniques give us 70% of energy, with that you can prevent early tired Ness or fatigue, insomnia, stress and anxiety.
If your energy is high, your work efficiency and efficacy, decisions making, accuracy etc.. quality will improve.