Extreme Heat Was Linked to More Drinking in Older Adults, Study Finds

This study looked at whether extreme heat and alcohol consumption moved together over time among older adults in the United States. It also examined whether certain early-life experiences were linked to differences in that relationship.

The researchers used data from the Health and Retirement Study, a long-running, nationally representative U.S. study of adults older than 50. Their analysis covered 1996 through 2018 and linked participants’ information with weather data. Extreme heat was defined as days above 95°F, or 35°C.

The study found a statistically significant association between additional extreme-heat days and increased alcohol consumption. For each additional day above 95°F, alcohol consumption was associated with a 0.21% increase. The news coverage described this as a 6.3% increase with exposure to 30 or more such days, which is consistent with the per-day figure reported in the study abstract.

The researchers then looked at whether early-life experiences changed this pattern. Participants who reported childhood encounters with law enforcement had a larger heat-related increase in alcohol consumption, reported as 0.08%. Participants who reported parental substance abuse had a larger increase of 0.05%. A positive father-child relationship appeared to buffer, or reduce, the association between extreme heat and alcohol use.

The study’s central result is not that every older adult will drink more during a heat wave. It is that, across the study data, hotter conditions were linked with modestly higher reported alcohol consumption. The association also varied depending on the early-life experiences the researchers examined.

This was an observational study. That means the researchers analyzed patterns in existing data rather than assigning people to experience heat or to drink alcohol. As a result, it cannot show that hot weather caused people to drink more, or that childhood adversity directly caused a person’s later drinking pattern. Other factors not described in the supplied material could help explain some of the relationship.

The abstract also does not provide the number of participants included in the final analysis, details of how alcohol consumption was measured, or information about all the factors the researchers accounted for in their statistical analysis. Those details matter when judging how closely the estimates reflect real-world behavior.

The findings apply to the older U.S. adults represented in this research. They do not establish whether the same pattern would be seen in younger adults, in other countries, or during every type of hot-weather event.

The researchers say further longitudinal research is needed. Future work could help clarify why alcohol use may rise during extreme heat, how early-life experiences may shape responses to environmental stress, and whether efforts aimed at safer ways to cope during hot periods can reduce health risks.