Does clenching your fist warm you up?

I read somewhere that if you're cold, clenching your fists can help increase your blood flow or something and helps warm you up a little. Is that true? Has anyone else heard of this?

Laura2017-07-30T04:55:07Z

yeah that might be true

Robert2017-07-30T04:53:52Z

Wrong section buddy, should be in health