Okay, you don't have to be a genius to see what this picture is about! Hint; it has nothing to do with what part of you is cold. Rather, its about caring for others and not just yourself. Jesus puts it this way...
WEB: Matthew Chapter 25
 “But when the Son of Man comes in his glory, and all the holy angels with him, then he will sit on the throne of his glory.  Before him all the nations will be gathered, and he will separate them one from another, as a shepherd separates the sheep from the goats.  He will set the sheep on his right hand, but the goats on the left.  Then the King will tell those on his right hand, ‘Come, blessed of my Father, inherit the Kingdom prepared for you from the foundation of the world;  for I was hungry, and you gave me food to eat. I was thirsty, and you gave me drink. I was a stranger, and you took me in.  I was naked, and you clothed me. I was sick, and you visited me. I was in prison, and you came to me.’
 “Then the righteous will answer him, saying, ‘Lord, when did we see you hungry, and feed you; or thirsty, and give you a drink?  When did we see you as a stranger, and take you in; or naked, and clothe you?  When did we see you sick, or in prison, and come to you?’
 “The King will answer them, ‘Most certainly I tell you, inasmuch as you did it to one of the least of these my brothers, you did it to me.’  Then he will say also to those on the left hand, ‘Depart from me, you cursed, into the eternal fire which is prepared for the devil and his angels;  for I was hungry, and you didn’t give me food to eat; I was thirsty, and you gave me no drink;  I was a stranger, and you didn’t take me in; naked, and you didn’t clothe me; sick, and in prison, and you didn’t visit me.’
 “Then they will also answer, saying, ‘Lord, when did we see you hungry, or thirsty, or a stranger, or naked, or sick, or in prison, and didn’t help you?’
 “Then he will answer them, saying, ‘Most certainly I tell you, inasmuch as you didn’t do it to one of the least of these, you didn’t do it to me.’  These will go away into eternal punishment, but the righteous into eternal life.”"
Tough words, very tough indeed. But, Jesus was like that; he just spoke plainly, yet powerfully. Think others don't matter; think again! To me, this passage speaks directly to Christians. Do I care for those who love God? Am I involved in their lives? If not, why not? Read the passage again, this time with a view to the consequences if you DON'T CARE. It should scare you; if it doesn't read it again until it does. You have more than your feet to worry about!!!