Feeling chilly when you're outside in the cold is one thing. But if you're always shivering, or your hands and feet feel like blocks of ice while everyone else nearby says the temperature feels toasty, then it's time to investigate. It's common for women to report feeling cold, partly as a result of physiology and also a greater susceptibility to conditions that can contribute to coldness, Holly Phillips, MD, medical contributor for CBS-2 News and author of The Exhaustion Breakthrough, tells Health. This checklist of 10 reasons your internal thermostat is out of whack can help you get a handle on why you're chronically freezing your butt off.