You have three stages of hair growth.
Anagen is the phase that most of the hair is in right NOW. 80-90% of the hair on your head in fact.
This growth phase will last from approximately 5 years for women and 3 years for men.
Catagen is considered the dead phase. 3% of the hair on the end is in this phase. This is when the hair transitions out of Anagen phase and into Catagen phase. The hair follicle ceases any activity and causes the death of the cells in the hair bulb. This death phase will last for around 1 month.
Telegen phase is the rebirth phase. You cannot see it happening, but the new hair is being created and pushing out the catagen phase hair. 10-20% of the hair on your head is in this phase. It lasts from 2-7 months. Basically our hair does this over and over and over again for the rest of our lives.
You should lose anywhere from 80-150 hairs a day. But, you ask, "I am losing more than that!!!!"
Here might be why;
1. Abusive styling processes. Many of my clients are guilty of this. They crank up the temperature of their curling iron and flat iron so that they can work faster. While a hotter flat iron may make quick work of a tedious job, the extra heat strips away any protein that we have in our hair. Our hair needs protein for strength. By using excessive heat you make your hair brittle, then it breaks off. :( Long story short, turn the temperature of your iron down from 420 degrees to 320 degrees(or less!).
2. Hormones. You changed medications, you had a baby, you went through puberty or menopause. Our body has soooo many hormones racing through it. It can really confuse the hair.
3.Thyroid. Through the hormones it produces, the thyroid gland influences almost all of the metabolic processes in your body. Thyroid disorders can range from a small, harmless loiter (enlarged gland) that needs no treatment to life-threatening cancer. The most common thyroid problems involve abnormal production of thyroid hormones. Too much thyroid hormone results in a condition known as hyperthyroidism Insufficient hormone production leads to hypothyroidism. I have seen many cases of hair loss that were directly related to thyroid.
3. Stress. You bought a new house, you started a new job, a death in the family, a birth in the family. These are all things that are not every day occurrences. They are stressful. Your body copes by going into the telogen phase once more to restart the hair growth phase regardless of which phase it was in prior.
4. Medications. What we put in our body can affect our hair greatly!!!
5.Dietary deficiencies. As a hairstylist, I have seen this mostly commonly when someone was a vegetarian and added meat back into their diet. As a vegetarian you have to make a much bigger effort to eat protein. As long as you have balance in your diet, generally vegetarians have much healthier hair because they eat more of a plant based diet.
6.Extreme Weight Fluctuations. Again, goes with stress. Its different and weird and your body needs time to adjust!