Mickey regularly practices during a set period of time each day. If he were to undergo neurological research, there would probably be evidence that the attention systems in his brain are more organized.

Meditation

Explanation: Meditation is an exercise where a person uses a method such as intentionally bringing one's awareness to encounters happening in the very period with no judgment or concentrating the psyche on a specific matter, reasoning or training. This is done to teach the mind the skill of the mental action of deeming or taking notice of somebody or something, and perception of reality or circumstance thereby attaining a mentally clear, emotionally quiet and firmly established condition.

by drinking easy

very easy

the answer will be a) proteins i believe