Jon stated that he began consuming alcohol at the age of 19, but was drinking most heavily from ages 21-22 on the weekends. at that time he was drinking on weekends and was sometimes getting drunk. he reported that he does not really like the feeling that alcohol gives him, as it makes him impulsive and more easily angry. he reported occasionally drinking more than he planned and that drinking would make him feel hungover. jon’s symptoms warrant a diagnosis of alcohol use disorder.