It is a biological cycle that lasts less than a day and happens in alternating periods of high and low frequencies of brain activity. Some researchers argue that it involves the balance of sodium/potassium in our system.

The brain works harder than any other organ and when we work harder than the usual what and tends to happen is that there will be a disruption to the balance of sodium/potassium and makes your brain call for a break. We also lose the ability to focus and concentrate when tired.

The more you ignore your body's natural cycles the more it will trigger its responses towards stress, the fight-or-flight response. We then become less active in hearing out ideas, unable to respond rationally, remain hyper-vigilant and anxious.

So many workers are generally stressed out on a daily basis and although not all workplace environments are stressors, it is important that everyone gets to relax and recharge whenever then can to improve productivity and overall well-being.