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Tips to keep feet warm?
(beehaw.org)
The simple trick to keeping one's upper body warm is adding layers. However, wearing multiple socks does not work for the feet. At least not for me. Any advice? Preferably non-electric solutions.
Photo credit: Shashi Chaturvedula.
Moving and alcohol both help to increase blood flow in the feet to keep them warm.
To anyone about to leave on an excursion to Siberia: alcohol numbs the cold too, leading some to remove layers. However, the onset and effects of hypothermia and frostbite still apply. Don't get wasted while taking a hike.
alcohol also acts as a vasodilator, you end up being numb to heat and losing it faster to boot.