Cold water bath to boost immunity in England

Middle aged men and women are seen bathing in cold water, ensuring social distancing on a cold winter day in Whitstable, south west coastal town of England as strict Coronavirus lockdown  - tier 4 Stay at Home policy - continues in the UK due to the high number of Covid-19 cases in the country - January 31, 2021.  Exercising and going to work are exceptions in Stay at Home policy