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Posted on 07/25/2025 6:35:25 PM PDT by ConservativeMind
Caffeine, which is present in various foods and beverages, is widely known to improve exercise performance. However, these ergogenic effects may not be observed under hot conditions.
Previously, a research group found that caffeine consumption before exercise in the heat increases physiological strain, including excessive breathing associated with elevated core body temperature (hyperthermia-induced hyperventilation) and decreased cerebral blood flow.
These physiological responses are attributed to a rapid increase in the blood caffeine concentration before exercise, which diminishes the ergogenic effects of caffeine.
In a study, researchers investigated the effects of intake of moderate doses of caffeine during exercise on performance during prolonged exercise in the heat in healthy young men and women.
The results showed that blood caffeine levels gradually increased during exercise, and the duration of high-intensity exercise performed at the end of exercise was prolonged. In addition, the rating of perceived exertion was lower immediately before high-intensity exercise.
By contrast, caffeine intake did not worsen hyperthermia-induced hyperventilation and cerebral hypoperfusion during exercise.
These findings indicate that consuming caffeine during exercise may be an effective strategy for improving exercise performance during prolonged exercise in the heat.
Moreover, this approach does not worsen physiological strain at corresponding time points compared with a no-caffeine condition. However, caffeine intake resulted in greater cardiorespiratory and temperature strain at the end of exercise because of the improved exercise performance.
(Excerpt) Read more at medicalxpress.com ...
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Someone told me once that drinking hot coffee in hot weather cooled her off.
If I drank coffee in the heat it would kill me.
Diet Dr Pepper
All the old timers used to drink coffee all day long and work in the desert heat.
Yes, see #6. I think it raises your core temp a bit which makes the difference between core temp and ambient temp less which makes you feel cooler.
My first job as a Staff CPA our partner in my office got to work at 6 AM put on coffee and literally drank it all day. He worked till 8 at night with coffee. Went home made coffee and stayed up till midnight. Rinse repeat.
Yes, I grew up in cow country and just about everyone did that everyday. When working out in the field there was always a “Coffee Fire” going and Coffee on... It was not unusual to be driving down a road and come up on a few vehicles parked on the shoulder. They had all stopped to build a fire, make coffee, and catch up on local gossip news. :)
I’m safe; I don’t exercise.
Drinking a cup of hot coffee during hot steamy sex could lead to severe skin burns...
I’ve heard...
Of course, at 92, drinking hot coffee any time can be fraught with danger...
Drinking hot coffee during a weight lifting workout, for some reason, never occurred to me....
“Someone told me once that drinking hot coffee in hot weather cooled her off.”
Almost as good as those that claim it helps them get to sleep?
I can drink coffee or coke, and go right to sleep. Must be the ADD.
All the old time heavy equipment operators would wear long sleeve shirts and drink hot coffee in the summer.
Coffee doesn’t seem to impair my sleep, but it sure does help wake me up. It’s a cup of sunshine.
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