Heat · 04
61 kcal
extra burned in an hour sitting in 40°C water (an hour of cycling burned 556)
Sitting in the heat burns a few dozen calories an hour, and the weight you lose is water.
In a lab study, an hour sitting in 40°C water burned 61 kcal more than resting, and an hour of moderate cycling burned 556 more.Source 1 · Crossover trialThe effect of passive heating on heat shock protein 70 and interleukin-6: A possible treatment tool for metabolic diseases?Faulkner SH, Jackson S, Fatania G, et al.. Temperature, 2017.Read the paper ↗PubMed ↗ Nobody has measured a dry sauna that carefully. When one trial measured body fat, a sauna after exercise made no difference beyond the exercise itself.Source 2 · Randomized trialEffects of regular sauna bathing in conjunction with exercise on cardiovascular function: a multi-arm, randomized controlled trialLee E, Kolunsarka I, Kostensalo J, et al.. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 2022.Read the paper ↗PubMed ↗
Try this
Count the sauna as rest when you track calories, and weigh yourself before a session. If your watch logs a sauna as a workout, delete the entry.