May support cognitive function by increasing circulation, reducing stress, and boosting levels of brain-derived neurotrophic factor (BDNF), a protein involved in learning and memory. Heat exposure activates the parasympathetic nervous system, promoting relaxation and mental clarity, while regular use has also been associated with a lower risk of dementia in long-term studies.

Enhance alertness and focus by triggering a surge of norepinephrine, a neurotransmitter linked to attention and mood. Cold exposure also stimulates the nervous system, helping the brain build stress resilience over time. Some research suggests it may even support better sleep, which is essential for memory and cognitive performance.