Everything we do takes energy, whether physical, emotional, cognitive, or (more often than not) a mixture of all three. The thing is, we only have a limited amount to last the day, which means if we aren't careful about which tasks we undertake and the energy they require, we can quickly find our resources depleted, and our productivity slumping. We're going to take a look at why it's essential to manage your energy before sharing our four methods for saving energy and being more productive at work.