A new pool installation is cool for the owner, but it can put the construction team at risk if they’ve been drinking
Drinking alcohol the night before physical labor or exercise in hot conditions of Texas, California, Florida and in the Middle East may increase inflammation in the body and raise the risk of heat-related illness, according to research presented at the 2026 American Physiology Summit in Minneapolis, the flagship meeting of the American Physiological Society.
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This is especially relevant for outdoor workers in roofing, paving, hardscaping, pool installation, and residential construction exposed to extreme heat.
Solar panels require heavy lifting in the summer sun. Be careful about drinking the night before work.
Working or exercising in heat already triggers inflammation as part of a normal stress response. But excessive inflammation can contribute to heat illness. Alcohol can further elevate inflammation, especially darker alcoholic drinks such as whiskey, tequila and red wine, and through acetaldehyde, a toxic byproduct created when the body metabolizes alcohol. Alcohol may also irritate the gut, allowing bacteria to enter the bloodstream and activate an immune response — a concern for construction crews, landscape contractors, and tradespeople working long hours outdoors.
Elevated inflammation can strain the heart by making it work harder in heat, impairing blood vessel function, and increasing the risk of heat exhaustion or heat stroke.
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While a cold beer is the first thing you will want after a day in the sun — whether roofing, laying down pavers, building decks or installing backyard pools — what happens when alcohol and heat exposure are combined is less clear. Previous research suggests around 30% of construction workers report working with hangover symptoms at least once a month. Alcohol-related inflammation is typically temporary, but its interaction with heat stress is still being studied.
Summit Sisters at work on a roof in Canada
In two trials, volunteers walked on a treadmill for four hours, simulating half a workday, in a hot room (100°F with 40% humidity). In one session, participants consumed about eight standard drinks the night before (reaching a blood alcohol level of 0.11), while in the other they abstained. Blood samples taken after exercise showed higher levels of inflammatory markers following alcohol consumption.
“These findings suggest that drinking alcohol the night before prolonged physical work in the heat may amplify parts of the body’s inflammatory response,” said Jonathan Specht, PhD, the study’s corresponding author. “Those exerting themselves after drinking should take extra precautions, including hydration, rest and seeking shade.”
The take home? Be mindful about alcohol consumption. Cancer studies have found that no amount is safe, and if you are hard-working and in the sun, don’t drink heavily the night before. Your heart health may depend on it.
