வெள்ளெழுத்து -காரணங்கள், அறிகுறிகள் - Presbyopia Causes, Symptoms

Presbyopia - Causes, Symptoms 

Presbyopia is the normal loss of near focusing ability that 

occurs with age. Most people begin to notice the effects of 

presbyopia sometime after age 40, when they start 

having trouble seeing small print clearly — including text messages on their phone.

Presbyopia - Causes

Presbyopia is an age-related process. It is a gradual thickening 

and loss of flexibility of the natural lens inside your eye.

These age-related changes occur within the proteins in the lens, 

making the lens harder and less elastic over time. Age-related 

changes also take place in the muscle fibers surrounding the lens. 

With less elasticity, it gets difficult for the eyes to focus on 

close objects.

உணவில் அதிக உப்பு பயன்படுத்தினால் அது ஆபத்தானதா? Is too much salt bad fo...

Is too much salt bad for us?

Salt, also known as sodium chloride, is about 40% sodium and 

60% chloride. It flavors food and is used as a binder and 

stabilizer. It is also a food preservative, as bacteria can’t 

thrive in the presence of a high amount of salt. The human body 

requires a small amount of sodium to conduct nerve impulses, 

contract and relax muscles, and maintain the proper balance of 

water and minerals. 

But too much sodium in the diet can lead to high blood pressure, 

heart disease, and stroke. 

The kidneys have trouble keeping up with excess sodium in the 

blood. As sodium accumulates, the body holds onto water to dilute 

the sodium. This increases both the amount of fluid surrounding 

cells and the volume of blood in the bloodstream. 

Increased blood volume means more work for the heart and 

more pressure on blood vessels. Over time, the extra work 

and pressure can stiffen blood vessels, leading to 

high blood pressure, heart attack, and stroke. 

It can also lead to heart failure.

Hypothyroidism - ஹைபோதைராய்டிசம் - பெண்களிடம் அதிகரித்து வரும் ஹைபோதைராய்டிசம்

Hypothyroidism - Causes,Symptoms,How to Prevent 

The thyroid gland is found in the front of the neck below the larynx, or voice box, and has two lobes, 

one on each side of the windpipe.

Hypothyroidism is a common endocrine disorder resulting from deficiency of thyroid hormone.

It is an endocrine gland, made up of special cells that make hormones. 

Hormones are chemical messengers that relay information to the organs and tissues of the body, 

controlling processes such as metabolism, growth, and mood.

The production of thyroid hormones is regulated by thyroid-stimulating hormone (TSH), 

which is made by the pituitary gland.

The thyroid creates two thyroid hormones, triiodothyronine (T3) and thyroxine (T4). 

These regulate metabolism, and they also affect the following functions:

brain development

breathing

heart and nervous system functions

body temperature

muscle strength

skin dryness

menstrual cycles

weight

cholesterol levels

தலையில் முடிகள் எப்படி வளர்கிறது?- How does hair grow -#hair #hairgrowth

How does hair grow?

There are 3 stages of hair growth in the cycle, from actively beginning growth from the root to hair shedding. These are known as the Anagen phase, Catagen phase and Telogen 

phase.

THE ANAGEN PHASE

The Anagen phase is the period of growth. 

The cells in the hair bulb divide rapidly creating new hair growth. Hair actively grows from the roots 

for an average of 3-7 years before hair follicles becomes dormant.

The length of this phase is dependent on your maximum hair length,

 which varies between people due to genetics, age, health and many

 more factors.

THE CATAGEN PHASE

The second phase of your hair growth cycle is Catagen. 

This period is short, lasting only 2-3 weeks on average. 

In this transitional phase, hair stops growing and detaches 

itself from the blood supply.

THE TELOGEN PHASE

Finally, hair enters it’s third and final stage called the 

Telogen phase. This phase begins with a resting period, where 

club hairs rest in the root while new hair begins to grow beneath 

it. This phase lasts for around 4 months.

After this time, the resting club hairs will fall out to 

allow the new hair to come through the hair follicle. This 

is nothing to be alarmed about and is a natural process that 

should go completely unnoticed. Each follicle is independent 

and goes through the growth cycle at different times so you don’t 

lose patches of hair all at once and only shed 50-100 hairs each 

day.  

மாரடைப்பின் அறிகுறிகள் உணர்ந்தால் என்ன செய்ய வேண்டும்?How to stop a heart attack

How to stop a heart attack - prevention, when alone

Acting quickly when you suspect a heart attack is coming on 

can greatly improve your chances for survival.

Most of the time, heart attacks start slowly with just mild 

discomfort and pain, giving warning signs before they strike. 

If you experience any of the following symptoms, 

, call the doctor immediately.



These could be signs of a heart attack:



*Discomfort in the chest, especially the center, that 

lasts more than a few minutes or comes and goes. 

The discomfort may feel like heaviness, fullness, 

squeezing, or pain.

*Discomfort in the upper body parts such as the arms, 

back, neck, jaw, or stomach. This may feel like 

pain or general discomfort.

*Shortness of breath. This may come with or without 

chest discomfort.

*Unusual sensations such as a cold sweat, nausea, 

vomiting, lightheadedness, or dizziness. 



*Take aspirin

When you’re still conscious, take a normal dose of 

aspirin (325 milligrams) if you have one on hand. 

Aspirin works by slowing the blood’s ability to clot. 

During a heart attack, aspirin slows blood clotting 

and minimizes the size of the blood clots that might have formed.



*Cough CPR

One type of treatment found online is called cough CPR. 

Some online sources claim that breathing deeply, 

and then coughing deeply, can raise your 

blood pressure for a second or two. 

தழும்புகள் அல்லது வடுக்கள் எப்படி உருவாகிறது? How do Scar forms #health ...

How do scars form

A scar is the end result of human wound healing. A wound can be created by any injury.

Scars form when the dermis is damaged. The body forms new collagen fibers

 to mend the damage, resulting in a scar. The new scar tissue will have a different texture and quality than the surrounding tissue. Scars form after a wound is completely healed.

எக்ஸ் - ரே அடிக்கடி எடுத்தால் ஆபத்தா? Is frequent xrays dangerous?

 X ray 

An X-ray is a quick and painless procedure commonly 

used to produce images of the inside of the body.



It's a very effective way of looking at the bones and 

can be used to help detect a range of conditions.



x-ray introduces free radicles to our body, and that damages 

our cell. Our cells either grow up or go with improper repairment.

This improper repairment of the cell leads them to establish 

a different structure,which is not suitable for health.

In the case of standard procedures, there is no or 

negligible chance of risk. It will not matter to you if you 

are going through ten x-rays in a year or two x-rays in a year. 

You have to understand that the frequency of the radiation 

doesn’t matter. What matters is the intensity of the radiation. 

But, whenever you are going for an x-ray, 

do not forget to inform the doctor about your past x-rays.

அதிக நெஞ்செரிச்சல் ஏன் ஏற்படுகிறது? Heartburn

GERD or Heartburn or Acid reflex - Easy and Quik Reference 



Heartburn is a burning pain in your chest, just behind your breastbone. 



Causes

Heartburn occurs when stomach acid backs up into the tube 

that carries food from your mouth to your stomach (esophagus).

Normally when you swallow, a band of muscle around the bottom 

of your esophagus (lower esophageal sphincter) relaxes to allow 

food and liquid to flow down into your stomach. 

Then the muscle tightens again.



If the lower esophageal sphincter relaxes abnormally or weakens, 

stomach acid can flow back up into your esophagus (acid reflux)

 and cause heartburn. The acid backup may be worse when you're 

bent over or lying down.

Risk factors

Certain foods and drinks can trigger heartburn in some people, 

including:



*Spicy foods

*Onions

*Citrus products

*Tomato products, such as ketchup

*Fatty or fried foods

*Peppermint

*Chocolate

*Alcohol, carbonated beverages, coffee or other caffeinated beverages

*Large or fatty meals

*Being overweight or pregnant 

also can increase your risk of experiencing heartburn.