Heavy use of marijuana is typically characterized by a frequency and quantity of consumption that significantly exceeds casual use. This may include daily or almost daily usage, often multiple times per day, and consuming large amounts over a short period. Heavy users may experience a higher tolerance, requiring more of the substance to achieve the same effects initially sought. This pattern of use can lead to both physical and psychological dependence, with users finding it difficult to scale back or cease consumption even when faced with negative consequences for their health, social life, and overall well-being. The term can also encompass situations where substance use disrupts or dominates an individual's activities, priorities, and responsibilities.