Cold plunge

Cold plunges, also known as cold water immersion, involve submerging oneself in cold water for various health benefits. Aubrey Marcus frequently discusses this practice, emphasizing its ability to enhance mental clarity and focus by triggering the mammalian dive reflex, which slows heart rate and simplifies thoughts. He notes that this stressor creates beneficial physiological adaptations and can help improve one’s mental resilience by pushing past initial resistance 1 2.

Cold plunges are also used post-exercise, especially for women, as they help with vasoconstriction, sending blood back to the center of the body for effective recovery. It's noted that women might benefit from cooler water temperatures around 55°F, unlike the colder temperatures often used in men's practices 3. Additionally, cold plunging has been linked to boosting the immune system, reducing fatigue, and potentially alleviating symptoms of depression and arthritis by increasing resilience to stress and improving circulation 4.

However, there are personal variations in how individuals respond to cold plunging. Lauren Berlingeri, for example, finds her body more sensitive to the cold during certain times of her hormonal cycle and limits her immersion to a few minutes to avoid discomfort 5.

Overall, while the practice has many advocates and anecdotal reports of benefits, it’s important to consider personal health conditions and consult with a healthcare provider if necessary before starting regular cold plunges.