Stress, depression factor into link between insomnia, heavy drinking

Insomnia and hazardous drinking can cause upheaval in one’s life: Both are associated with missed work and lower productivity on the job. Chronic insomnia can increase the risk for cardiovascular disease, Alzheimer’s and other chronic illnesses. A defining characteristic of alcohol use disorder (AUD) is continuing to drink even when encountering interpersonal problems, getting sick or hurt, or driving while intoxicated.