After the skin is subjected to cold stimulation, signals are transmitted through nerves to the brain, which then transmits the signals to the hypothalamus. The hypothalamus then transmits signals that stimulate the contraction of skin blood vessels, muscle tremors, and reduced sweat gland secretion. This enables the cold air therapy device to reduce local congestion or bleeding, lower the sensitivity of nerve endings, effectively alleviate pain, reduce inflammation, and promote physical recovery.
