Good brain cell neighbours may be the secret to aging slower, here's how

3D medical background with magnifying glass examining brain depicting alzheimers research.

Your brain cells act like a community for better or worse. Here is which neighbours will keep you young and which will make you age faster.

The key to a good neighbourhood is the people in it: it is made better by the annoyingly cheery do gooder who brings in your parcels, or worse by the grouchy neighbour who lets their dog poop outside your door.