Take a mini break
Stand up and stretch, or watch a funny video. University of Illinois at Urbana-Champaign researchers found that people who took two short breaks during a repetitive 50-minute task performed better than those who worked straight through.
Go for a quick walk
A landmark study published in Journal of Personality and Social Psychology revealed that a brisk 10-minute walk can have a revitalizing effect, enhancing energy for at least two hours.
Chew a stick of gum
A 2015 U.K. study found that this trick raised alertness and improved concentration possibly because chewing increases blood flow.