Radio 4 in Four - What happens when your brain wanders? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - What happens when your brain wanders? - ÃÛÑ¿´«Ã½ Sounds
What happens when your brain wanders?
Sit down, relax and think of nothing. Struggling? There might be a good reason why.