The growth of every hair on our hair is a cyclical phenomenon. It occurs with periods of increased growth, followed by when a hair follicle enters a resting phase (the telogen phase ) and the hair growth is stopped for a certain time. It then falls, and the activity of the follicle resumes with the appearance of a new hair. So it’s normal to lose around 100 hair every day. At any given time, about 15% of the hairs of the hair are in the growth phase.
The large amount of hair causes the cyclicity of this process to remain unnoticed and to appear as if all our hair grows evenly and continuously. Not only is this not the case, but sometimes the period when hair growth ceases can last very long. Then the impression that our hair has completely stopped growing is a real fact.
At such times, speeding up growth, and the resurgence of her hair may require Herculean efforts. In order to be effective, the causes of prolonged hair growth should be detected and neutralized as far as possible. And they may be different.
Like the color of the hair, its cyclicity and the density it will reach are genetically encoded. In some people, the period of hair growth before entering the telogen phase is longer. With them, the hair can reach a longer length before individual hair can fall naturally. In others , the hair growth period is shorter and the single hairs fall at a shorter length. This creates the impression that hair grows slowly or has stopped growing, but this is not the case, because new hair grows on the site of the fallen hair, but it takes time for it to grow long enough.
Over the years, some of the hair follicles lose their activity, and the hair decreases accordingly. This leaves fewer hairs and when many of them enter the rest, the hair really begins to grow visibly slower. For each person this condition occurs at a different age.
It has been found that severely stressful experiences can cause prolonged hair growth to stop. Thus, a much larger proportion of the normal 15% of them enter both the telogen phase and the growth of hair generally slows down. The status may be present for periods of 6 months or more.
A number of hormonal changes may affect the peripheral circulation and disrupt the blood flow of the skin and hair follicles on the scalp. This inevitably affects the rate of hair growth and may delay it for purely physiological reasons.
Deficiency of vitamins and minerals
Insufficient intake of iron, zinc, protein and biotin (vitamin B7) has been shown to slow hair growth. Each hair needs constant levels of these factors in the blood to grow normally or to maintain its fresh appearance in the resting phase. Deficiencies of these vitamins and minerals can significantly slow hair growth.
These factors may result in a situation where the number of hairs in the resting phase increases several times. This creates the feeling that hair does not grow . Removing each of these factors is not always possible, so periods of slow hair growth are sometimes long and may last for months. Experts point out that in such cases, total hair nourishment can effectively stimulate hair growth, which is in an active phase of growth. If nutrition is good and timely, good results can be achieved to stimulate hair growth.