The human brain accounts for about two per cent of body weight and consumes about twenty per cent of the body's total energy every day — and that consumption barely changes whether you are solving differential equations or staring at a wall - Space Daily

A study from Monash University suggests that the human brain's energy consumption remains relatively stable regardless of whether a person is performing complex tasks or resting. The brain's high energy demand is primarily driven by the constant maintenance of electrical activity and information transmission.
Why it matters
This research challenges common misconceptions about cognitive effort and provides insight into the biological foundations of mental fatigue.
The human brain accounts for about two per cent of body weight and consumes about twenty per cent of the body's total energy every day — and that consumption barely changes whether you are solving differential equations or staring at a wall
The article summarizes scientific findings objectively without political or social bias.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in