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Alcohol Use Disorder and Dementia: A Review
In 2020, an estimated 17% of the U.S. population was older than age 65; this proportion is projected to rise to about 23% by 2060.1,2 This prompts an urgent need for identifying potential and modifiable risk factors contributing to health decline.3,4 After tobacco, alcohol is the most misused substance in the United States and abroad.5 Even prior to the coronavirus disease 2019 (COVID...
Abundant cross-sectional data indicate that alcohol use and related problems are accompanied by disruptions to sleep and circadian rhythms.1 Alcohol's negative impacts on sleep are well established, especially in adults, and a smaller body of literature also reports alcohol's disruption of circadian rhythms.2-4 Growing evidence supports sleep and circadian factors as influencing...
Alcohol-associated liver disease (ALD) is a leading cause of morbidity and mortality in people with alcohol use disorder (AUD).1 Alcohol exerts its effect on the liver through both direct and indirect pathways and can eventually lead to steatosis, steatohepatitis, fibrosis, hepatocellular carcinoma, and cirrhosis.2 However, only approximately 10% to 20% of patients with ALD develop...
Alcohol and Skeletal Muscle in Health and Disease
Alcohol misuse is the most common form of substance misuse and is associated with liver, cardiovascular, and metabolic diseases as well as with infections and cancers.1 Although an estimated 20% to 25% of people who drink heavily develop alcohol-related liver disease,2 40% to 60% of people with alcohol misuse have alcohol-related myopathy.3 Evidence that alcohol use leads to skeletal...
Alcohol’s Negative Emotional Side: The Role of Stress Neurobiology in Alcohol Use Disorder
The word “alcohol” often conjures up positive feelings and associations with fun, socializing, relaxing, and partying. Yet there is another side to drinking alcohol, especially with risky, hazardous levels of consumption. This side is associated with distress and may include anxiety, loneliness, pain, and depressive symptoms.1 This has been labeled the “dark side,” or “negative...
According to national surveys, more than 85% of U.S. adults have consumed alcohol at some point in their lifetime, and about 70% did so in the last year.1 Most individuals drink responsibly and without adverse effects. However, a substantial proportion of people misuse alcohol.1,2 Drinking patterns associated with alcohol misuse include binge drinking, heavy drinking, and high...
Alcohol-Endocannabinoid Interactions: Implications for Addiction-Related Behavioral Processes
Endogenous cannabinoids, or endocannabinoids (eCBs), are bioactive lipid molecules that modulate signaling activity of several physiological processes involved in pain, appetite, energy balance, stress/anxiety, immune signaling, and learning and memory. Although understanding of the eCB system has grown in complexity since its discovery by Raphael Mechoulam, it is now widely known...
Patterns of Cannabis and Alcohol Co-Use: Substitution Versus Complementary Effects
Use of alcohol and related problems cause significant global and individual health-related harms, and alcohol use is currently the third-leading cause of preventable death in the United States.1,2 Alcohol and cannabis are among the most commonly used psychoactive substances in the United States.3 Although concurrent use of alcohol and cannabis (i.e., co-use: defined as using both...
The Convergent Neuroscience of Affective Pain and Substance Use Disorder
A central feature of substance use disorder (SUD) is the emergence of negative affective or emotional states that influence the motivational properties of misused substances.1 Individual propensity to experience pain-related negative affect, for example, is hypothesized to be associated with the maintenance of both opioid use disorder (OUD) and alcohol use disorder (AUD). Chronic...
Forebrain-Midbrain Circuits and Peptides Involved in Hyperalgesia After Chronic Alcohol Exposure
Chronic pain increases the risk for development of alcohol use disorder (AUD). Given that acute alcohol consumption can reduce pain, humans sometimes drink alcohol for relief of pain. Chronic alcohol consumption, however, can increase pain sensitivity during withdrawal and facilitate pain sensitization related to comorbid pain conditions.1 Ascending and descending nociceptive...
