"Go to extremes" refers to behaving in an excessive or exaggerated manner. Some synonyms for this phrase include "overdo," "exceed," "push beyond limits," "go too far," and "take things too seriously." These words refer to acting beyond the norm, either in terms of behavior, emotional reactions, or physical actions. The idea of going to extremes can refer to many different aspects of life, from work to personal relationships to hobbies and interests. Whether it's driven by passion, anxiety, or a desire to achieve at all costs, going to extremes can have positive or negative consequences, depending on the context.