Jeff returns from his vacation to find that his roommate has left a pile of unwashed dishes in the sink. instead of calling his roommate lazy for letting the dishes pile up, jeff avoids confrontation by biting his lip and walking off. in this scenario, jeff chose to regulate his emotion.

Answer is expressive suppression.

Explanation:

Expressive suppression can be explained as the act of reducing facial expression to control or hide a current state of emotion, or positive or negative feelings of emotion. It is can also be described as an act of regulating emotions.

Note that, the habit of suppressing negative emotion could result to depression, decreased in heart rate and physical illness in extreme cases.

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.

answer; interpreting someone's past consistent with present deviance;