My mother is always nagging us to wear more clothing when it's cold outside, especially with LO. The cold doesn't seem to bother him, so sometimes I don't force a jacket on him when he refuses. My mother thinks cold temperatures can compromise your immune system and makes you more susceptible to getting sick, which is much improved than when she believed you can catch a cold by being out in the cold. =P What is your take on this? Should I force my LO to wear a jacket more often then?