In case anyone wants to read the bible verse everyone is making reference to it is I Corinthians 11:14-15
"Does not the very nature of things teach you that if a man has long hair, it is a disgrace to him, but that if a woman has long hair, it is her glory? For long hair is given to her as a covering."
Keep in mind this verse is not saying that women have to have long hair. It says IF a woman has long hair it is her glory. Also note the context in the begining of verse 14 "the very nature of things...". It is just saying basic human awareness lets you know God has given men testosterone which speeds up hair loss in men. On the contrary, God has given woman estrogen causing our hair to grow longer and for longer time.
In funny terms...God's nifty plan made man to natrually go bald and woman to natrually be beautiful (short and long hair). Rarely do you see a bald woman.
Having said that...I do thank God for the covering of protection he has given us with husbands...which the hair also symbolizes.