The brain can noticeably respond to the various nutrients we take in during the day.
Some foods can cause anger, depression, fear, irritability and irrational emotions.
Diet also controls neurotransmitter production, learning, memory, sleep, motor and IQ functions. Over-eating dulls the brain. Too much sugar creates expansion in the head, so we have a spaced-out feeling and has the effect of sending us to sleep. Meat is dense and heavy and works on the lower part of the body, not the head. Shops are full of herbal and food supplements designed to enhance brain function.