On Fri, 31 Oct 2014 07:05:33 -0000, Rod Speed wrote:

Bod wrote

Uncle Peter made this incredible statement:

"This is a fact. -20C air does not make you cold, .
You might shiver if you were naked, but the
shivering will stop you getting any colder".

To me, it sounds like he's talking absolute bull****
and he should be sent to the funny farm, but is
there an element of truth in what he said?....

Nope. Its certainly possible to be quite active when
naked in -20C air and do fine, but just standing there
naked and shivering wont let you survive for long.

Active or not it doesn't matter. Shivering replaces active, it's the same thing, your muscles are moving. You also have reduced blood flow to the surface (all of you, not just your fingers and toes and other sticky out things), and brown fat cells which generate heat directly from calories.

--
Why didn't Noah swat those two mosquitoes?