“Heat doesn't only damage your hair strands, drying them out and creating bubbles (from boiling!) under the smooth cuticle that causes a loss of sheen, but it also can damage your hair follicles too, making them less able to grow healthy hair long term,” says Krant. “So no sitting under dryers, ladies! If you must use a hair dryer, only dry the middle third of the shaft, avoiding heat on your roots and tips.
2. LACK OF WELL-BALANCED DIET.
For a beautiful hair from inside out, be sure to eat a well-balanced diet consisting of food rich in iron, beta carotene, omega-3 acids, zinc and biotin.
3.CHEMICAL PROCESSING OF THE HAIR.
Why is it so terrible for your tresses? Well, because chemicals to color, curl or straighten your hair into a non-natural situation do so by breaking and recreating molecular bonds, explains board certified dermatologist and founder of Art of Dermatology Dr. Jessica Krant. “This is a serious chemical reaction that can be caustic and damaging to the scalp and follicles themselves. After several years of processing, some women lose the ability to grow hair permanently.
4.GO EASY ON FLAT IRON.
Seriously! Be kind to your hair, and don’t overuse your flat iron, warns board-certified dermatologist and author of Skin Rules, Debra Jaliman. “If you continue go over the same piece of hair with a straightener you're going to eventually cause bad breakage.” And as you know, breakage leads to hair loss.
5.EXPOSURE TO SUN.
Remember to wear a hat or use a quality SPF spray on your locks. When hair is exposed to the sun over a prolonged period of time, it dries it out, making it more prone to breakage. Plus, the UV light from the sun can damage bonds and weaken strands as well, notes Jaliman.