Articles Tagged with: hair facts
5 Follicular Facts You Should Know

5 Follicular Facts You Need To Know

For all the time you spend looking at, caring for, or worrying about your hair, how much do you really know about what’s going on up there? Do you know what your hair is made of, how it grows, or why you may be losing yours?

At the Miami Hair Institute, we believe in empowering our patients with knowledge about their hair, hair loss, and hair restoration options. To that end, here are five follicular facts you need to know.

  1. Each human hair has three separate parts:
    1. The shaft. The shaft is the part of the hair you can see above the surface of your scalp. Each shaft has three layers. The innermost layer, the medulla, doesn’t serve any particular purpose. However, the second layer, called the cortex, provides hair with strength, durability, and the ability to uptake water. The outer layer is the cuticle, which protects the shaft and helps it repel water. 
    1. The follicle. Sitting just below the surface of the skin, this tube-like pouch anchors the shaft and attaches it to the skin.
    1. The hair root. The hair root attaches hair to the base of the follicle. The root is where hair grows and is nourished by blood capillaries.
  • The hair growth cycle has three distinct phases:
    • Anagen phase. The first phase is the growing stage. Hair grows at about one cm each month, and the anagen phase can last between two and five years.
    • Catagen phase.  As this phase begins, the bulb detaches from the blood supply and pushes the hair shaft up. The catagen phase can last several weeks.
    • Telogen phase. During this resting stage, which lasts about five months, there is no hair growth. At the end of the telogen phase, the hair sheds, and the follicle starts to grow a new one. At any moment, about 90% of the hair follicles of the scalp are growing hairs in the anagen phase, while only about 10% are in the resting phase.
  • Everyone loses hair every day. Seeing hair in your drain or on your brush is not a cause for panic: most folks who don’t suffer from visible hair loss still shed between 50-100 hairs each day.
  • Hair loss is a problem for tens of millions of Americans. While we all lose hair daily, those who suffer from hair loss lose substantially more than that, leading to thinning hair, receding hairlines, and baldness. The numbers tell the story:
    • 35 million American men suffer from hair loss
    • 21 million American women experience hair loss
    • By the age of 35, two-thirds of American men have some degree of appreciable hair loss, and by age 50, around 85% of men have significantly thinning hair.
    • Androgenetic alopecia, commonly known as male pattern baldness, is responsible for over 95% of hair loss in men.
    • Approximately 25% of men who have male pattern baldness start losing their hair before they turn 21 years old.
  • Hair loss is not all your mom’s fault. Perhaps the biggest misconception about hair loss is that you inherit it from your mom’s side of the family. While your hair’s strength and vitality are, in fact, mostly a matter of genetics, the genes which play a role in hair loss come from many places, including your dad’s side of the family. This “polygenic” basis for hair loss means that you should examine all the branches of your family tree if you want to see into your hair loss future.

Schedule a Hair Loss Evaluation Today at The Miami Hair Institute

At the Miami Hair Institute, know the facts about hair loss and how to treat it. We evaluate each hair loss patient with a comprehensive and proven methodology so that we can determine the underlying cause of your hair loss and propose the optimal course of treatment. To schedule your personalized hair loss evaluation and begin your hair restoration journey, contact us online or call our office directly at 305-925-0222.

10 Incredible Hair Facts

Facts and statistics about hair, pattern baldness, and health

10 Incredible Hair FactsHair is one of the most revered of all human body parts, perhaps because it plays such an integral role in the formation of first impressions, self-image, and self-confidence. Americans spend millions each year to keep their luscious locks healthy, styled, and nourished. Millions more are spent by individuals who suffer with hair loss, further illustrating just how deeply our culture values the appearance of a full head of hair.

Despite such adoration, Americans tend to know very little about the follicular assets that cover their crown. Some are shocked to know that certain strands of hair contain traces of the element gold, for example. Others are surprised to learn that some individuals naturally go blonde as they age.

The editors of the Miami Hair Blog have compiled the following list of hair facts to educate, entertain, and—in some cases—amaze. For more amazing hair facts, be sure to reference the articles and info graphics in the sources section below.

Hair facts: 10 things you might never have known

1. Facial hair could prevent skin cancer.

Sorry ladies, this perk is for testosterone-driven males only. Men with facial hair might be less likely to contract skin cancer because those thick mustaches and beards shield the face from harmful UVA/ UVB rays. It’s not all bad for women, however. By the same logic, long hair might protect the ears and neck from equally damaging rays.

2. Human hair often contains over a dozen different elements.

Each strand of hair is comprised of many different elements, including hydrogen (H), sulfur (S), nitrogen (N), oxygen (O), and gold (Au).

3. Not all hair colors go grey.

Black, brunette, and blonde haired individuals are known to go grey as they age. However, redheads have a unique tendency to go blonde as they age, which is an interesting fact for the 2-6% of the American population who have red hair.

4. Redheads are extremely rare.

Though 2-6% of the American population has red colored hair, the population of redheads worldwide is only about 1%.

5. Hair cleans up oil.

Certain Eco-conscious groups have been known to use high volumes of human hair to clean up massive oil spills.

6. Receding hairlines were once fashionable.

During the Renaissance period that spanned the 14th-17th centuries across Italy and Europe, women were known to aggressively pluck their hairlines to create the appearance of a higher forehead.

7. Pattern baldness can take a long time to notice.

Depending on the individual, signs of pattern baldness might not be noticeable until upwards of 40% hair is lost. Signs of balding are even harder to detect in women because hair loss tends to occur in a more spread-out manner.

8. Bones grow faster than hair.

When it comes to regeneration, bone marrow is the only tissue in the human body that grows faster than your hair.

9. Approximately 5 million hair follicles span the human body.

Follicles are the organ that produces hair, helping each strand to progress through 3 distinct phases: Anagen (growth), catagen (cessation), and telogen (rest).

10. Hair can be shocked into dormancy.

A car accident, divorce, loss of loved one, or other serious life event can disrupt the normal growth cycle and send hair into a resting phase. If severe, hair follicles might remain dormant and become unable to produce new, healthy hair. Hair loss professionals call this phenomenon Telogen effluvium, or stress-related hair loss.

Hair Transplant Institute: South Florida’s Top Surgeons

This list of incredibly hair facts has been created by the Hair Transplant Institute of Miami, home of South Florida’s top hair transplant surgeons. To learn more about hair loss evaluation and treatment at our Institute, call 1-877-443-9070.


(i) “50 Insane Facts About Hair- Infographic.” Daily Infographic. Accessed 9 December 2013.

(ii) “5 Unusual Facts About Hair.” The Belgravia Centre. Accessed 9 December 2013.

(iii) “Effluviums.” American Hair Loss Association. Accessed 9 December 2013.

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