A daily bucket of icy water poured over the head 'helps block winter illnesses, and makes children optimistic'.
Cold water off a ducks back as Russians vow to keep record forever.
Our reporter completes Day 4 of Baikal skating tour safe and sound
.....and afterwards, time for wee dram!
It may seem unusual but sunbathing in snow and wearing nothing more than a swimming costume in -10C can help fitness.
It is a medical fact that children are healthier if they daily run out into the snow in their swimming costumes - and pour a bucket of cold water over their heads.