A strong immune system is something to behold.
Though it might seem like it would do the opposite, ice baths can help boost your ability to fight off illness.
An interesting study was undertaken in which a group of 12 people trained in the Wim Hof Method were induced with inflammation, which would usually result in flu-like symptoms. In comparison to a group who were not trained, the Wim Hof Method participants showed fewer flu-like symptoms.
This is likely due to the activation of the sympathetic nervous system as a result of taking an ice bath.
In doing so, circulation is increased and the immune system is activated. This can help your body to quickly heal and fight off infection or disease.