It may also help cleanse the outer skin, reduce stress, and more. Just start slow, listen to your body, and adjust accordingly. Cold showers probably won’t hurt, although they’ll feel pretty intense the first few times. Changing your routine can make you more mindful of your body, your habits, and your overall lifestyle. A 2016 study found that cold showers lowered the study participants’ absence from work by 29 percent. One study found a significant increase in plasma testosterone shortly after heat exposure, especially when the sauna session involved 15–20 minutes at 180–200°F followed by cooldown intervals. Near-infrared saunas utilize a different type of light therapy, which some studies suggest may offer additional benefits for hormone health. Both trigger comparable heat stress responses that can temporarily increase your testosterone levels. Strength training followed by sauna use typically produces the most substantial testosterone spike, while endurance training combined with heat exposure can lead to elevated growth hormone levels. Your body will become more efficient at handling heat stress, which can lead to reduced cortisol levels and more stable testosterone production. The participants’ PA levels were evaluated using the International Physical Activity Questionnaire. Always practice good steam room hygiene by wearing flip-flops, sitting on a towel, and rinsing off with a lukewarm shower to get rid of bacteria after using the steam room. If you feel unwell while using the steam room, you should leave immediately to relieve your symptoms. Medical professionals also warn against entering a steam room if you have a fever, especially a high one. If you’re ill, it’s recommended that you do not use the steam room to reduce the risk of transmitting your illness to others. Although temperatures vary, steam rooms are typically kept somewhere around 110°F (43°C). This is the number of years you live in reasonably good health without serious acute or chronic illness. There has been much discussion in medical circles about increasing life span and health span. Cumming et al. (1983) reported that an increase in the pharmacological doses of COR decreased TES production in humans. COR is a catabolic hormone that is secreted by the adrenal cortex in response to physiological stress. Testosterone and COR levels can increase significantly even during low intensity exercise that is sufficiently prolonged (Brownlee et al., 2005; Väänänen et al., 2002). Testosterone plays a key role in triggering and maintaining sexual functions in males, and there is no scientific evidence to indicate that regular sauna bathing reduces male fertility (Kukkonen-Harjula & Kauppinen, 2006). In men, the increase in TES is particularly important for resistance-induced adaptations (Vingren et al., 2010), but a very high and rapid increase in serum TES and COR levels was reported immediately after high-intensity endurance exercise (Kreamer et al., 1995). According to Foss and Keteyian (1997), TES concentrations increase with the duration of physical effort, but training-induced changes in TES levels have not been fully elucidated. Through environmental exposure, all sorts of toxins can become trapped underneath your skin. The researchers called for further studies to identify the specific bodily processes that might connect sauna bathing and memory diseases. These may include sleep improvement, stress reduction, and mood boosts from focusing on doing something positive for yourself. A greater decrease in serum COR was noted in men with higher baseline COR levels, whereas the decrease observed in men with lower baseline COR levels was significantly smaller. Nindl et al. (2001), Daly et al. (2005) and Brownlee et al. (2005) confirmed the presence of a relationship between COR and TES during sample recovery, which could suggest that a critical concentration of COR has to be achieved in order to substantially influence circulating TES levels. In turn, Kukkonen-Harjula and Kauppinen (1988) demonstrated sauna-induced changes in TES secretion. Plasma TES concentrations during the sauna bath did not change in the studies conducted by Leppäluoto et al. (1986) and Kukkonen-Harjula et al. (1989). In physically active individuals, TES is especially important for the growth and maintenance of skeletal muscles, bones, and red blood cells (Zitzmann & Nieschlag, 2001). They found that high-intensity strength exercise followed by sauna exerted a greater strain on neuromuscular performance than high-intensity endurance exercise or combined endurance and strength exercise followed by sauna.