The catagen phase is a transitional stage and about 3 of all hairs are in this phase at any time.
Anagen is the active phase of the hair. Growth stops and the outer root sheath shrinks and attaches to the root of the hair. It is this phase lasts for about two to three weeks. Generally, the cells in the root of the hair are dividing rapidly. Anyway, so it is the formation of what’s known as a club hair.
It’s an interesting fact that the hair follicle is a tunnel like segment of the epidermis that extends down into the dermis. Women have far less sebum production than men do as they age. Sebaceous gland is vital as long as it produces sebum, that conditions the hair and skin. I’m sure that the living part of the hair is the very bottom part surrounding the papilla, called the bulb. Cells of the bulb divide every 23 to 72 hours, remarkably faster than any other cell in the body. Then, the structure contains a couple of layers that all have separate functions. So, after puberty our body produces more sebum but as we age we begin to make less sebum. At the base of the follicle is the papilla, that contains capillaries, or tiny blood vessels that nourish the cells.
Some people have difficulty growing their hair beyond a certain length since they have a short active phase of growth.
While explaining why they are very much shorter than scalp hair, the hair on the arms, legs, eyelashes, and eyebrows have a very short active growth phase of about 30 to 45 days. So, people with very long hair have a long active phase of growth. Furthermore, during this phase, the hair follicle is completely at rest and the club hair is completely formed. Consequently, about 25 to 100 telogen hairs are shed normally every day. Telogen is the resting phase and usually accounts for 6 to 8percent of all hairs. Now please pay attention. With that said, this phase lasts for about 100 days for hairs on the scalp and longer for hairs on the eyebrow, eyelash, arm, and leg. Pulling out a hair in this phase will reveal a solid, hard, dry, whitish material at the root.
Hair has two distinct structures -first, the follicle itself, that resides in the skin, and second, the shaft, that is what’s visible above the scalp. At this stage of life there’re about 5 million hair follicles on the body. With one hundred thousand of those follicles residing on the scalp, many of us know that there are a total of one million on the head. Since we do not generate new hair follicles anytime in the course of the course of our lives, it’s the largest number of hair follicles a human will ever have. By week 22, a developing fetus has all of its hair follicles formed.
The hair shaft is created from a hard protein called keratin and is made in three layers.
At any given time, a random number of hairs could be in one of three growth stages and shedding. With that said, hair on the scalp grows about. Human hair growth and shedding is random and not seasonal or cyclical, unlike other mammals. Consequently, the cuticle is a tightly formed structure made from shingle like overlapping scales. While giving it its color, it’s both the cortex and the medulla that holds the hair’s pigment. So inner layer is the medulla. Hair that you see ain’t a living structure, therefore this protein is dead. With that said, the cortex makes up loads of the hair shaft. As a result, the second layer is the cortex and the outer layer is the cuticle. And now here is a question. Look for to live your best life, this is the case right? And now here’s a question. Look for to live your best life, is that the case? >