Could Exercising In Frigid Temperatures Make Us Healthier? - As a freezing winter drives many of us indoors, some extreme athletes embrace the cold as a great way to burn calories & retrain the immune system while working out. Not so fast, physiologists say.

Could Exercising In Frigid Temperatures Make Us Healthier? - As a freezing winter drives many of us indoors, some extreme athletes embrace the cold as a great way to burn calories & retrain the immune system while working out. Not so fast, physiologists say.: https://n.pr/2F0RUUK Read more... http://bit.ly/2TkDNNm