The brain impulse that makes us all quit in the end is found by scientists

Instinctive quitters: When a certain threshold is reached, the brain gives the signal to throw in the towel

No matter what you are doing, there comes a point when it's time to call it a day.

And scientists believe they have discovered the precise part of the brain which tells you when that time has arrived.

Researchers say evidence of an in-built instinct to quit has been witnessed throughout the ages.

The impulse which told ancient foragers to give up on one pasture and move on to more fertile hunting grounds is the same as that which urges us to try a different internet site if our initial choice is taking too long to appear on screen, the experts believe.

Scientists found that a section of the brain called the dorsal anterior cingulate cortex (ACC) appears to be responsible for weighing up reward against cost in any given situation.

When a certain threshold is reached, the brain gives a signal to throw in the towel.

U.S. researchers from Duke University in North Carolina studied rhesus macaques.