Heat transfers faster through liquid than gas, so keep warm by staying dry.
There's a connection between being wet and getting cold, and vice versa for heat, says engineer Lia Lavoie.
To ensure your body temperature doesn't fall too quickly in cold environments, invest in clothes made of wool instead of cotton — they'll absorb more moisture so that dampness doesn't linger on your skin. And, of course, do your best to stay dry.