CNN (KYTX) - It's been said a woman's hair is her crowning glory, but if you aren't careful, it could lose some of its luster.
Dermatologist Dr. Corinne Erickson says heat is probably the single most damaging thing we're overexposing our hair to.
The heat from all of our styling tools leaves the hair looking dull and prone to split ends. That's because heat breaks down the cuticle, the protective outer layer of the hair that gives it its shine.
So what should you do? if you can, let your hair air dry. If you don't have time for that, set your hair dryer to cold.
"As the hair starts to dry, progress up to warm." says Dr. Erickson.
And, keep the dryer at least 6 inches away from your hair. Also, when you get out of the shower, just wrap your hair in a towel.
"Wet hair is incredibly fragile and just by vigorously towel drying the hair it stretches it beyond the breaking point." she says.
Don't comb your hair when it's wet, but if you must, use a wide-tooth comb.
There are some exceptions. If you are an African American, it is better to comb and brush the hair while it is wet.
Other pieces of advice? Only use irons every other day and cut down on the hairspray.