Too few crescent moons on the fingers, suggesting that the body is ill? Why don't some people have crescent moons? This is the scientific explanation
In a school handicraft class
Junior high school student Xiao Li accidentally discovered
The students have a white mark like a crescent moon at the base of their nails
but not myself
Also being joked may have health problems
So, she couldn't help but worry
go home
Xiao Li told her mother about this
Mom said, "I don't either, I'm very healthy!"
So
What exactly is this crescent moon?
Why do some people have it and some people don't?
This has to start with the growth process of nails
The nail consists of four parts: the deck, the nail bed, the nail root, and the methyl group .
The reason why nails grow continuously
Mainly rely on "methyl factories" to supply it with keratinocytes
(the main ingredient of nails)
But because during the growth
The growth rate of keratinocytes decreases from the center to both sides
The middle one always grows faster
Therefore, when keratinocytes are just formed,
In the shape of a pale white crescent
It can be said
The crescent moon is like an underage fingernail
follow-up
As keratinocytes continue to age
and move forward
Old cells are squeezed by new cells
When layers of old cells stick to each other
a structure similar to a stucco brick wall
becomes a hard, transparent cuticle—the deck
The capillaries on the nail bed appear through the nail plate
It becomes the color of our common nails: pale pink
as part of the human anatomy
There are many factors that affect the crescent moon
Different genes, age, environment , etc.
will vary in position and size
There are two common reasons:
①The methyl position varies from person to person
Some people have higher methyl groups
keratinocytes can be seen immediately after they grow
Fresh crescents are clearly visible
Some people have lower methyl groups
Keratin cells are already aging before they show up
So there is no crescent moon on the finger
②The growth rate of nails is different
The average person usually has a crescent on the thumb
Because of the high usage rate of the thumb, it wears out quickly
Stimulates the growth of keratinocytes
crescent moon is common
on the contrary
The little finger moves the least
slowest growth
Therefore, there is generally no white crescent
From a medical point of view
There is no necessary connection between crescent moon and health
really want to say
Because the growth rate of nails is proportional to the body's metabolism
Nutritional status, age, trauma and disease, etc.
linked to the body's metabolism
so
Judging health status simply by crescent moon
not reliable
for reference only
But if the crescent moon suddenly has a significant change
Or when there is abnormal performance for a long time
should have noticed
1. Sudden appearance or increase
Patients with general hyperthyroidism
The body's metabolism will speed up
to promote nail growth
To meet the needs of nail growth
The production and storage of keratinocytes is also accelerated
Thus
People with few crescent moons
may suddenly appear full moon
People with normal crescent area
The crescent area may also become larger
2. It suddenly becomes smaller or disappears
on the contrary
If the crescent suddenly becomes smaller or disappears
may be hypothyroidism
also
The human body lacks trace elements, vitamins,
Poor immune status and nutritional status
and connective tissue disease
It may also cause the crescent moon to disappear
Symptomatic treatment should be
in Chinese medicine
The color of the crescent moon also represents different physical conditions:
·Color changes
Once there is an abnormal situation
Please seek medical attention in time
at last
I will attach a few small nails to refute rumors for everyone, so stop guessing~
①Is it a sign of malnutrition with white spots on the nails?
wrong!
②There are vertical stripes on the nails, which means the body is very weak?
wrong!
all in all
The development of nail crescent is affected by nutrition, environment,
Physical fitness, etc.
Don't compare the size or number of the crescent with others
Because everyone's metabolic efficiency is different
stay healthy and eat a balanced diet
Reasonable exercise, healthy work and rest
Stay in a good mood, it's more important~
References:
[1] Ma Jiayuan. Can crescents on fingernails indicate health? [J]. Diet Health, 2016, (101):62.
[2] Shi Xin. The number of nail crescents has nothing to do with health [J]. Longevity, 2012, (12):52.
[3] Lu Yunliang's book, Holographic Kidney-tonifying Chinese Medicine, China Traditional Chinese Medicine Press, 2017.03, p. 28
[4] Cheng Leqing, editor-in-chief, Home Gold Ideas, Qingdao Publishing House, 2017.01, p. 128
[5] Zhuo Ran. What is the relationship between crescents on nails and health [J]. Health Monthly, 2020, Vol.41(5):420-421.
[6] The truth of "Crescent Moon" on nails [J]. New Countryside, 2018(4):39.