Alternating between hot and cold temperatures, such as transitioning from a sauna or hot tub to an ice plunge, has been shown to offer several health benefits. This practice, often referred to as contrast therapy, can improve circulation by causing blood vessels to expand in heat and contract in cold, promoting better blood flow and cardiovascular health. It also helps reduce muscle soreness and inflammation, making it popular among athletes for recovery. Additionally, exposure to extreme temperatures can boost the immune system, enhance mental resilience, and increase endorphin levels, leading to improved mood and overall well-being.