The intense cold from ice baths constricts blood vessels on the body’s periphery, which results in a lowered heart rate and elevated blood pressure. As such, while some individuals may experience a notable rise in testosterone levels as a result of engaging in regular ice bath practices, others may not notice any change—or could even see reduced levels. For optimal recovery and elevated testosterone benefits, one should immerse themselves in an ice bath either directly following their workout or no later than two hours after finishing their exercise regimen.
Moreover, after one week, subjects exhibited an increase in total testosterone and a decrease in estradiol (Naghii et al. 2011). A corresponding increase in free testosterone suggests that boron supplementation was effective for freeing up a portion of total testosterone by releasing it from SHBG. Up to 15% of the male population presents magnesium deficiencies linked to poor diet, so magnesium is often included in testosterone-boosting products and supplement stacks. Like zinc, magnesium is an essential mineral that can only be obtained through diet and supplementation, and it is responsible for a variety of conditions affecting sexual function including heart health, blood flow, and energy vs. fatigue.
Cold exposure boosts norepinephrine and dopamine during the day, which helps regulate energy rhythms and may improve nighttime wind-down if used earlier. Done right, it helps train your body to handle real stress. Repeated ice baths during intensive training may slightly blunt muscle growth signals, though this applies mostly to athletes training at high volume. A 2016 study found that cold showers lowered the study participants’ absence from work by 29 percent. This was especially the case when done back-to-back with hot water exposure, or done for at least 10 to 15 minutes in water at temperatures from 52 to 59°F (11 to 15°C). Two studies, one in 2007 and another in 2009, found links between cold temperature and activation of brown fat.
For instance, a Japanese study (Sakamoto et al. 1991) showed that cold stimulation before cycling resulted in increased testosterone levels in male athletes. A few athletes practice what they term "deliberate cold exposure" before an exercise session. This is in direct contradiction with personal anecdotes that suggest a significant boost in testosterone production from ice baths. There are certain cold water therapy risks that should be consider before making it part of your healthcare routine. Maximizing testosterone benefits from cold plunges or ice baths is best achieved at temperatures below 14°C (57°F).
Research shows that zinc deficiency can significantly suppress testosterone, while restoring adequate levels supports hormone balance, recover... It can support hormonal health indirectly, but it is not a testosterone booster. Cold plunges won’t magically boost testosterone, but they support the systems that regulate hormonal balance, especially stress. This suggests that cold showers may boost the immune system, even though there was no effect found on how long people were sick.
In addition to the documented case studies showing significant testosterone increases after adopting a regular ice bath practice, two reports of decreases have also reached me. While treating physicians expressed skepticism regarding the causal relationship between cold plunge and testosterone level increases, David is considering discontinuation of TRT due to the observed improvements. Testosterone Replacement Therapy (TRT) was initiated at 360 mg/week, resulting in testosterone levels increasing to 800 ng/d. David Morris is a 47-year-old male business owner who presented with low energy and was diagnosed with hypogonadism based on initial testosterone levels in the 200 ng/dL range. After 40 consecutive days of cold plunge therapy, Pamela reported significant improvements in mental health, mood, anxiety, and osteoarthritis symptoms, allowing discontinuation of steroid injections for back pain.
The kind of physical activity you engage in can impact how much your testosterone levels benefit from ice baths. Consequently, engaging in consistent exercise routines like weight lifting paired with ice baths can haveten fat loss while sculpting a more toned body structure. One piece of research recorded a reduction in testosterone by 10% following cold stimulation, while contrasting studies have indicated an elevation in hormone levels during exercise performed under colder conditions. Joe Rogan brought attention to a Japanese study that provides evidence suggesting pre-exercise cold immersion may elevate men’s testosterone levels.

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