To boost energy, take a few minutes out of your day to do some deep (belly) breathing.

Most people do chest breathing in which only a small volume of air is drawn. This results in your energy levels plummeting, as you don't take in enough oxygen. On the other hand, if you breathe through your diaphragm (or belly breathing) it pulls the bottom of the lungs downward, causing them to fill and the belly to lift. Belly breathing is a simple way you can increase your energy. Place your hand on your belly and inhale through your nose. Feel how your belly raises. Release by exhaling through pursed lips and feel how your hand lowers.