Cut it too short to often, you may loose it.

There is a theory about the cutting of mens hair.  Simply put, men usually wear their hair short.  Short is nice, neat, and very professional, however short is not the way a farmer would keep their crops.  See, the farmer wants to enjoy abundant rich growth and bounty.  Now lets put this scenario into perspective.  Hair, like a plant, needs a little growth. If you were to prune a plant a little you would be able to shape that plant and make it grow richer and stronger and also make it produce more fruit.  Back to hair, if you were to think of your hair more like a plant and less like a dead substance that grows out of you head you might find that it is more alive than you think.  Like a plant, if you chop too much off it might stay alive but its growth will be very sporadic and much less pronounced.  Now think of baldness, if you keep over trimming the garden, the growth will be much less.  So start thinking of your hair more like a living plant and less like a dead pile of mass and you may improve your chances at having a nice full head of hair.  It is important to take care of everything you own and your hair is one of them.  Change your ideas a bit and it can go a long way!  Hair growth is one of the beautiful results you can achieve once you decide to let new ideas in.