Gambling's grip: an addiction researcher, a reward scientist and a comic's family

Gambling, in these three conversations, is not just an expensive hobby some people enjoy too much. It shows up as a behavior engineered to exploit the brain's reward system, and as something whose costs land on whole families.

Dr. Keith Humphreys, a Stanford professor of psychiatry who has spent his career treating addiction, draws the line at harm rather than frequency: addiction is persisting in something harmful to the point of destruction. His case against the industry rests on one line: "There is no customer like an addicted customer." Profits depend on the heaviest users; with alcohol, about 10 percent of Americans drink roughly half of it. He calls himself a capitalist but wants tight regulation of addictive products through advertising limits and taxes, and he holds up gambling as regulation abandoned, with sports betting ads everywhere and young men ruining themselves financially. Slot machines have replaced dealers because they deliver perfectly timed reinforcement around the clock, and they use what the industry calls losses disguised as wins: lights and sounds celebrating a payout smaller than the bet.

Dr. Robert Malenka, a Stanford psychiatrist and neuroscientist, explains why this works. The reward circuit evolved to flag what matters for survival and to make us repeat what led to it, and dopamine there ties into attention and memory. Something can be reinforcing without being enjoyable: wanting is not liking. He and Andrew Huberman agree that gambling, social media and pornography capitalize on ancient mechanisms, and Malenka suspects casinos use behavioral economics experts to tune payouts, because intermittent rewards are so powerful. Huberman adds that gambling addicts believe the next bet could change everything, which no alcoholic believes about the next drink.

Comic Adrienne Iapalucci supplies the human cost. Her father gambled on horses on a modest income, took his daughters to off-track betting parlors, did not pay her Catholic school tuition and drew down his pension; her grandmother gambled away rent money. Gamblers Anonymous did not help him, and her verdict is that a person who does not want to stop will not stop. Joe Rogan, who met full-time gamblers in pool halls at 23, says gambling hijacks the human reward system and calls the feeling a real drug.

They differ mainly on where the lever lies. Humphreys points to policy and product design; Iapalucci's story puts the weight on the person's own wish to stop. Humphreys bridges the two: addicted people have impaired control, not zero control, and the right questions and immediate rewards can help them find their own reasons to change. On why people gamble, the scientists point to reward circuitry and design, while Iapalucci's conversation names excitement, purpose and possibly numbing childhood problems. Malenka's mix of genetics, upbringing and current environment makes room for both. Much of the gambling evidence here is anecdotal, and the treatment evidence comes mostly from substance use.

What to do with it: judge gambling by harm, not frequency. Know your family history, remembering that genes are risk, not destiny. The strongest point of control is never starting. If you do gamble, treat a win as the signal to stop, watch for losses disguised as wins, and remove cues such as betting apps. With someone you love, skip judgment, which invites false answers, and help them find their own reasons and immediate rewards. Expect relapse to be most likely under stress and even after success. Anyone worried about their own or a family member's gambling should talk to a doctor or an addiction professional.