Research shows that constant stimulation and focus can actually harm performance. Excessive focus can actually harm performance by draining energy and losing self-control. It is likely you will become more impulsive and less helpful, reducing collaboration and giving rise to inaccurate decision making.
So in a world where there is a constant fight for our attention, what can we do about it?
Research shows that we create higher performance and positive habits when we move between focus and unfocus. This allows you to be more creative, collaborative, learn quicker, make better decisions and be more resilient. Allowing yourself time in the day to daydream, to do a repetitive task, to go for a walk, to think from another's perspective, will all give your focus a break, and allow you to accelerate your performance.
Here's the thing. The human brain wasn't meant to run a marathon. It's not designed to be alert and stimulated for a majority of the day. Think about how humans lived millions of years ago. We moved at a slower pace that pretty much only involved hunting and gathering. This slower life style left a lot of time for the brain and body to relax and recharge. Those earlier people were also in rhythm with the sun and nature - this probably helped them follow their circadian rhythm. Today, we're hustling almost 24/7. Between work and family obligations and being plugged in constantly, it's no wonder there's a sleep epidemic here in the states.