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Brain work contributes to physical fatigue
Ever wondered why you get more physically exhausted when certain issue keeps you worried? This could be because brain work accelerates the development of physical fatigue, says a new study by Indian-origin researchers.The study showed that when we attempt mental tasks and physical tasks at the same time, we activate specific areas, called prefrontal cortex (PFC), in our brain.
New York: Ever wondered why you get more physically exhausted when certain issue keeps you worried? This could be because brain work accelerates the development of physical fatigue, says a new study by Indian-origin researchers.The study showed that when we attempt mental tasks and physical tasks at the same time, we activate specific areas, called prefrontal cortex (PFC), in our brain. This can cause our bodies to become fatigued much sooner than if we were solely participating in a physical task.
Typically, endurance and fatigue have been examined solely from a physical perspective, focused primarily on the body and muscles used to complete a specific task. However, the brain is just like any other biological tissue, it can be overused and can suffer from fatigue.
The researchers found that there were lower blood oxygen levels in the PFC following combined physical and mental fatigue compared to that of just physical fatigue conditions. Through simultaneous examination of the brain and muscle function it is apparent that when participating in highly cognitive tasks, brain resources are divided which may accelerate the development of physical fatigue, the study said.
