Did not know that YouTube was that old!
Everyone is looking for short cuts to increasing fitness. This is nothing new:
Today this is manifested in the new toning shoes that are being marketed to increase fitness. These shoes have been attracting a lot of interest lately, but the marketing or advertising claims for the toning shoes has led to legal issues for some of the companies.
Chilblains are a common problem in colder climates. They have attracted a lot of “cures” over the years:
For more modern approaches in use see this chilblain cream.