I recently encountered this fascinating article from the Telegraph here in the UK. It details the negative physiological effects that occur in the body when we think too hard! However, it doesn't go very much into depth about how to deal with thinking fatigue.
According to the article, if the brain is forced to work beyond its limits, toxins are released that cause it to poison itself.
Apparently, when these harmful chemicals introduce themselves, they act as a direct cause of fatigue, meaning that you can no longer perform the tasks you need to. In other words, it brings on a spiral of destruction and you can no longer be productive.
The article then continues with the assertion that sleep and rest are the only ways to address this issue. Of course we won’t argue with that as it is obviously true, however there are some interesting things at play here and there actually is another way to address this challenge.