Doubtful.: This is a very old myth that's been around for a long time. Warm weather may theoretically increase cutaneous blood circulation a bit, and thus increase the rate of hair growth a bit; but even if that happens (and there are no valid studies showing that it does), the difference would be so small as to be virtually undetectable.
Answered 6/14/2012
5.8k views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question