Heat elevates heart rate because increased core temperature changes pH levels in cells, causing cellular dysfunction, so the body increases heart rate to increase sweat rate and allow bodily cooling functions to occur.
causalpending
Evidence Quote
“if the core temperature increases too much the pH levels in the cells change and essentially the cells die or they don't perform as they should and so the body is constantly trying to keep that balance of heat and so it does that by increasing your sweat rates and by increasing your heart rate”
Created: 8/13/2026, 10:26:22 AM
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