
The human brain is basically lazy, it only wants to do so much and that is to keep your body functioning properly. Everything it does after that requires effort.
People who accept they are where they are meant to be at any given moment do not make the brain work and this makes for a happy brain. (Stress free) #positive attitude.
People who constantly complain about where they are and what they’ve got make the brain work overtime and this leads to an unhappy brain. (Stress & anxiety) #negative attitude.
Happy brains look for happiness, unhappy brains look for unhappiness.