Thermic Effect

The "thermic effect" you're referring to may be similar to what Dr. Huberman discusses in terms of the thermogenic response to external temperature changes, specifically through mechanisms like sauna use. In this context,Andrew Huberman explains how exposure to heat (like a sauna) causes physiological changes equivalent to cardiovascular exercise. These changes include increased heart rate, blood flow, and hormonal shifts, such as increases in growth hormone and reductions in cortisol. This response essentially provides some of the benefits of physical exercise just by being in a hot environment 1.

Moreover, Dr. Huberman discusses how such deliberate heat exposure could potentially activate pathways leading to reduced risk of cardiovascular events and all-cause mortality, illustrating a profound impact of thermic environments on overall health.