This posture that's fatal to your health

It is best to stand upright and wash your hair with your head slightly tilted back.

It's better not to bend forward when washing your hair.
As blood is concentrated on the head, the heart burden increases and pain can occur in the neck, waist, and eyeball. When you wash your hair, you naturally take a posture of lowering your head or waist.
However, elderly people with weak hearts or heart disease should not take this posture.
This is because if the upper body is bent too much, blood is concentrated on the head and the blood that needs to return to the heart cannot return.
As much as you lower your head, it becomes difficult for blood to return to your heart. A red face while washing your hair is a danger sign.
It is more dangerous to squat down and lower your head or wash your hair with cold water.
When it touches cold water, blood vessels contract and blood does not circulate properly. When your heart is out of breath,
Dizziness can occur.

Even people with spinal diseases are harmful if they bend their heads and close them. If the neck is tilted more than 45 degrees, a load of more than 20kg is applied to the neck bone
If you bend down, the pain can worsen due to the force of the disk being pushed back.

People with glaucoma should also be careful. Usually, the intraocular pressure is less than 21mmHg, but if you take a posture with your head or waist down,
It can go up to 30 to 40 mmHg. If the intraocular pressure is high, glaucoma will worsen
Patients with glaucoma should avoid bending as much as possible.

It doesn't matter if you bend down once or twice and wash your hair, but it's better to maintain the right posture as you wash your hair every day.
The best way is to stand upright while taking a shower and wrap your head slightly backward.