Well, I document almost EVERY thing I do to my hair. This obsession has got me really going crazy. I mean, this is the healthiest, strongest and longest my hair has ever been in my adult years. I often get asked how do I flat iron my hair, how often, and how long does it normally stay straight? How Often Do I Flat Iron: Well, I flat iron my hair once bi-weekly. I make sure that I use heat protectant and spray sheen before I use the heat. So far, no harm has been done to my hair. Heat does not have to be the devil if you are taking proper precautions to ensure the health of your hair. I never blow-dry and flat iron anymore, I stopped that 2 years ago. I only air-dry. How Long Does It Last: My hair usually stays straight for a week or a little longer as long as moisture does not hit it. Remember I'm a natural so my hair will curl/shrink/and bush up all at the same time at the drop of water. How Do I Flat Iron: (this is what works FOR ME) On clean, air-dried hair, I pa...