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fast – v. to eat no food for a period of time
convert – v. to change (something) into a different form or so that it can be used in a different way — usually + to or into : The cells absorb light and convert it to energy.
neurons – n. a cell that carries messages between the brain and other parts of the body and that is the basic unit of the nervous system
snack – n. a small amount of food eaten between meals
positive – adj. good or useful
nonconsecutive – adj. not being in a sequence : not consecutive : Exercise three times a week on nonconsecutive days.
mood – n. the way someone feels : a person's emotional state : moody – adj. having moods that change often moodiness – n.
