Our hair goes through a natural capillary process, which serves to protect the scalp from factors like cold, rain, heat, pollution and other external agents. The strand of our hair is formed by two main parts: the cuticle which is the outermost layer and acts as a protective wall for the interior of the hair, and the cortex, having about 80% consisting of a Set of fibers that give elasticity and resistance to rupture. Let us now understand the cycle of birth, maturity, and fall of hair.
The Three Phases Of Hair.
The first one is called the anagen phase. It is the stage in which the hair bulb is in full activity. That is, the cells of the root of the hair grow and divide continuously. Very similar to a plantation, where the length of hair is increased. This stage usually lasts from 2 to 7 years, and the threads grow on average 1 cm per month. This is the stage in which the production of hair strands is in full operation.
The next step is the catagen. At this stage the hair is preparing to go to rest and its growth is interrupted. The hair disconnects from the papilla and the base of the follicle begins to rise toward the surface of the skin of the scalp. This usually lasts two to four weeks, the fastest. It is only to give space to the new threads that will be born.
In the third and last stage, the telogen, the hair is ready to detach itself from the root of the scalp and finally fall. It usually loosens from the follicle when the hair is washed, brushed. Or when a new hair begins to be produced and pushes the old hair out of the scalp.
A thread that falls into the phase that really should fall does not cause pain when it comes off the scalp. And it has a bulb rounded, hard and dry in the part of the root.
Hairs that are in the production phase cause pain when they are plucked and have a soft, flexible bulb. Sometimes with a transparent and gelatinous aspect that everyone must have seen when pulling a hair out of the root.
The three phases occur simultaneously because each hair is in a certain stage. There will never be the possibility that all hairs are in the same situation. It is normal for people to have an average of 100,000 follicles on the scalp. Of which 5% are in phase 2, another 10 to 15% are in phase 3, and the remainder, which represents the vast majority of the hairs are in phase 1. That is, the vast majority of hairs are constantly growing and will take years to fall.
It is estimated a normal loss around 80 to 100 strands of hair per day. But do not worry, as this will not leave bald spots in your head. When one hair falls, another new hair is already in the process of being produced. However this estimate of loss will depend on genetic factors and lifestyle of each person.