Ice baths have a positive effect on resistance and immune defense. An ice bath strengthens blood circulation, strengthens the heart muscle and activates the stress hormone adrenaline. The nervous system affects the immune defense system, which is strengthened when the body is exposed to short and controlled stress with the help of an ice bath.
(Janský et al., 1996)
(Dugué et al., 2000)
(Kox et al., 2014)