Sitting for long periods of time is known to inhibit the supply of oxygen to the brain, so if you spend all day at a desk or doing some other sedentary activity, be sure to get up regularly and get some exercise. The best way is to get up every 30 minutes and be physically active for two minutes, which can be a few steps, such as a walk around the block, or some stretching and activation exercises. All of these exercise sessions improve the oxygen supply to the brain, ensuring that fatigue and sluggishness don’t stand a chance. So if you want to do your brain even more good, increase the duration of the little mini exercise session to five minutes, because a little more exercise also benefits your health even more.