When intense cognitive work is prolonged for several hours, it causes potentially toxic by-products to build up in the brain, a study has found. Getty Images
When intense cognitive work is prolonged for several hours, it causes potentially toxic by-products to build up in the brain, a study has found. Getty Images

Health

Why scientists are saying too much thinking is bad for you

The link between physical labour and tiredness is well established, but now researchers have a theory as to why cognitive activity leads to fatigue

Tim Kiek

August 11, 2022