heat exposure deepens breathing and shifts blood pH toward alkaline
Hyperthermia-induced increases in tidal volume relative to respiratory rate (thermal hyperpnea) form the basis of hyperthermia-induced respiratory alkalosis, as demonstrated by increased tidal volume and minute ventilation during heat exposure in neonatal rats.
What this means for you
When your body heats up, breathing naturally deepens and slows — a response that shifts blood chemistry toward a more alkaline state. Many people associate this kind of breathing shift with a calmer nervous system and a sense of mental clarity. It's the same direction your body moves during slow, intentional breathwork.
The published research
The Impact of Inflammation on Thermal Hyperpnea: Relevance for Heat Stress and Febrile Seizures
American Journal of Respiratory Cell and Molecular Biology · 2024
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