You need BOTH macromolecules and micro minerals to stay alive, and insufficient amounts of either one will make you considered to be unhealthy. For example, one micro mineral is iron. If you do not have enough iron in your body, your red blood cells cannot carry oxygen through your body.
Only your fingertips should touch the ball when setting in volleyball. It is a light push of the ball into the air. Too much hand will cause the ball to spin.
