Mums always advise their daughters to ignore the tricks of teenage boys because girls are always more sensible, than the boys, Daily Mail reports.

Now there’s research to back up their theory – after a study found that the brain matures earlier in girls than in boys.

The Newcastle University researchers said this could help explain why teenage girls seem to grow up faster than their male classmates.

As we get older, parts of the brain become smaller as unnecessary connections between cells are pruned away, leaving a more streamlined and efficient processing machine.

The scientists used scans to peer deep inside the brains of 121 people aged between four and 40. 

This showed that the pruning process began at around the age of ten for girls – but not until around 20 for men.

Explaining the brain’s streamlining process, researcher Dr Marcus Kaiser said: ‘This is part of the normal learning process. The brain as a whole is still expanding but it is losing connections. 

‘It is like if you are at a party and everyone is talking and you can’t concentrate. But if some of the voices go, it is easier to hear.

‘It is similar in the brain. If some of the connections are not there, it is easier to do the work.’