With age
It is normal to grow gray hair gradually
Some people have gray hair at a young age
What is the reason for this?
Is it related to excessive stress?
Come and master the knowledge points!
How is white hair formed?
Human hair and body hair
both grow from follicles
Melanocytes that determine hair color
Derived from melanocyte stem cells
This stem cell is present in the hair follicles of the scalp
Part of the hair follicles Melanocyte stem cells
differentiate into melanocytes during the growth phase
melanocytes synthesize pigments
add color to regenerated hair
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With age
The total amount of melanocyte stem cells gradually decreases
The hair The color will also gradually lighten
melanocyte stem cells in all hair follicles
completely depleted
hair will turn white
Can excessive stress cause “overnight whiteheads”?
Greying hair due to stress
Related to norepinephrine
Its main source
adrenal and sympathetic nerves
The raised area of scalp hair follicles
Highly innervated by sympathetic nerve cells
Stressed or stressed people
induces the sympathetic nervous system
increases the release of norepinephrine
this hormone responds to stress< /p>
Very active
and drives the body’s response to fight back or escape
At the same time, it also leads to
melanocyte stem cells Excessive response
causing premature depletion of melanocyte stem cells in hair follicles
Due to lack of melanocytes Stem cells
also can’t convert enough melanocytes
can’t color hair
hair starts to lighten or whiten
Although the statement of “white hair overnight” is a bit exaggerated
but too much pressure
does lead to rapid graying of hair
premature hair growth
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These reasons may cause gray hair
In addition to excessive stress
These reasons may also lead to
Young people prematurely grow gray hair
lack of exercise
Reduced physical activity will cause Lead to poor blood circulation
all corners of the scalp can not be effectively supplied with blood
make melanocytes unable to function properly
Irregular living and resting
Irregular living or lack of sleep
It will reduce the secretion of growth hormone
Slow down the blood circulation of the whole body
thereby causing gray hair
unreasonable eating habits
picky eaters, unreasonable eating habits
It will lead to unbalanced nutrient intake
melanocytes at work
insufficient nutrients provided
cannot produce melanin to supply hair
so Easy to gray hair
mental workers who often use their brains
long-term overuse of the brain,
mental stress is too high
Coupled with the combined effect of the above three conditions
and thus prone to premature gray hair
How to control the increase in gray hair?
Adolescents should maintain a good attitude
Avoid excessive sadness and mental tension
Pay attention to a reasonable diet and a balanced diet
Premature whitening Hair
also related to study pressure and anxiety
some teenagers with gray hair
can be improved through nutrition and emotional regulation
In this regard, experts recommend
eat more foods rich in copper, such as animal liver, shellfish,
mushrooms, nuts, apricots, and oats
Good for maintaining black hair
From: CCTV-1 “Life Circle”
Source: CCTV set