Drs. Jennifer Merrill and Mary Beth Miller - Alcohol-induced BlackoutsDrs. Jennifer Merrill and Mary Beth Miller - Alcohol-induced Blackouts
The Addiction Psychologist
Drs. Jennifer Merrill and Mary Beth Miller talk through what alcohol‑induced blackouts are, why they occur, and how they relate to harm and change in drinking. The conversation mixes research findings, vivid stories and practical tips for individuals, clinicians and policymakers concerned about alcohol‑related memory loss.
1:06:50•14 Sept 2026
Alcohol‑Induced Blackouts: Memory, Risk and Rethinking "Blackout Drunk"
Episode Overview
- Blackouts are periods of alcohol‑related amnesia where someone stays conscious but cannot later recall what happened.
- Rapid rises in blood alcohol concentration, fast drinking and long periods of increasing intoxication are strongly linked to blackout risk.
- Experiencing a blackout often co‑occurs with other harms and can increase motivation to change drinking, making it a useful clinical entry point.
- A simple 15‑minute memory test during drinking can help friends spot possible blackout risk and decide not to leave someone alone.
- Policy changes such as banning extreme drink specials and labelling standard drink counts on containers may reduce blackout‑related harm.
“"Drinking outcomes depend more on how you drink than what you drink."”
Curious about how others navigate their sobriety journey? This episode of *The Addiction Psychologist* shines a spotlight on alcohol‑induced blackouts, with Drs. Jennifer Merrill and Mary Beth Miller breaking down what blackouts are, why they happen, and why they matter for anyone thinking about changing their drinking. You’ll hear clear explanations of the two main types of blackouts: en bloc (complete gaps) and fragmentary (patchy or cue‑dependent memories).
Merrill explains that during a blackout "you are conscious, you just don’t remember it later," while Miller shares a striking story of a young woman who "blacked out almost every time she drank" and came to in a car with six strangers – a vivid reminder of how risky memory loss can be. The conversation digs into what pushes someone towards blackout territory: rapid rises in blood alcohol concentration, drinking games, pre‑drinking, and things like poor sleep or not eating.
Using clever ecological momentary assessment and alcohol biosensors, they show that how fast someone drinks and for how long their alcohol levels are climbing may matter more than the specific drink in their hand.
As Miller puts it, "drinking outcomes depend more on how you drink than what you drink." For people in recovery or considering it, the hosts highlight that blackouts are strongly linked with other harms such as hangovers, regret, and even emergency department visits, and yet many young adults treat them like a joke or badge of honour.
At the same time, experiencing a blackout can make someone more open to brief interventions and change, which offers a hopeful angle for clinicians and loved ones. Practical tips include slowing down to about one drink an hour and using a simple 15‑minute memory test with a friend who’s drinking heavily as an early warning sign. Policy ideas such as banning extreme drink specials and clearer labelling of how many standard drinks are in each container round out the discussion.
If alcohol‑related memory loss has touched your life, what would it mean to treat a blackout as a serious warning light rather than just another wild story?
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