Insulin on Health TLDRLSS

Why Do People Get Diabetes? Understand Insulin Function and the Dreaded Insulin Resistance! Insulin Is the Body's Carefully Designed Blood Sugar Regulation Mechanism!

Tue, 09 Jun 2026 13:10:00 +0800

When it comes to diabetes, the first thing everyone associates it with is “insulin”.

Some say that not having enough insulin causes the disease, while others say that injecting insulin ruins the body and is addictive.

What role does this “insulin” actually play in the body?

What Is Insulin? The Body’s “Exclusive Delivery Agent”

Imagine this: you eat a bowl of rice, and after digestion, a large amount of glucose floods into your bloodstream. These sugars are like boxes of packages, clogging up the entire “blood vessel highway”.

The problem is, cells cannot open the door on their own to absorb glucose. At this point, the pancreas secretes a hormone called “insulin”.

Its job is to:

Process	Description
1. Ring the doorbell	`Insulin` travels to the “receptors” on the surface of the `cell`
2. Open the door	Triggers the `cell` to open its door
3. Move goods inside	Allows glucose to enter the `cell` and be converted into energy

Without insulin, sugar can only stay in the bloodstream. Even though the cells are starving, the doors just won’t open.

Insulin is produced by a group of tiny workers in the pancreas called beta cells. They are on duty 24/7, starting mass production as soon as blood sugar rises.

What Is “Insulin Resistance”? Why Can’t the Door Be Opened Even with the Key?

If insulin is the key, the receptor on the cell surface is the lock.

Under normal circumstances, one key easily opens one door.

But if you eat too much for a long time and exercise too little, something happens:

The cell is already stuffed

With a steady stream of sugar being sent in every day, the cell’s energy warehouse has long been packed to capacity.

Since there is no room left inside, the cell simply makes a decision: change the lock.

Stage	Body’s Reaction	Analogy
Early Stage	`Cell` receives too much sugar, starts reducing receptor sensitivity	The resident finds the deliveries too annoying, turns down the doorbell volume
Mid Stage	`Insulin` finds it harder and harder to trigger the cell to open the door	The delivery agent rings the doorbell desperately, but the resident plays dead and won’t open
Late Stage	`Cell` almost completely ignores `insulin`	The resident directly cuts the doorbell wire

This is insulin resistance: it is not a problem with the key, but rather the lock has been changed, the doorbell has been pulled, and no amount of keys can open it.

The modern diet combination (refined starches + sugary drinks + prolonged sitting) keeps cells in a chronic state of energy surplus, creating the perfect storm for insulin resistance.

What Happens After Insulin Resistance?

When cells refuse to open the door, sugar in the blood cannot go down.

The pancreas receives the signal that “blood sugar is still too high,” assuming it hasn’t sent enough insulin, so it makes a fatal decision:

Work overtime, work crazy overtime.

Stage	What Happens	Result
Desperate Compensation	The `pancreas` increases `insulin` production by 5 to 10 times	`Blood sugar` is forced down, and the values look normal
Hyperinsulinemia	Insulin concentration in the blood rises abnormally	Promotes fat accumulation and chronic blood vessel inflammation
Beta Cell Burnout	Forced to work overtime for several consecutive years	`Beta cells` begin to collapse batch by batch
Crash	`Insulin` production drops below normal levels	`Blood sugar` goes completely out of control → Diagnosed with Type 2 Diabetes

For many people, insulin resistance has quietly existed for over 10 years before they are diagnosed with diabetes.

During this period, blood sugar levels may appear “normal” because the pancreas has been sacrificing its life to keep the numbers down. It is only when beta cells run low that blood sugar suddenly spikes.

The Hidden Dangers of Hyperinsulinemia

Even if blood sugar numbers are normal, chronically high insulin itself is toxic:

Danger	Description
Promotes visceral fat accumulation	Makes your waistline wider and wider
Accelerates vascular wall inflammation	Sows the seeds of arteriosclerosis
Increases cancer risk	High insulin stimulates abnormal cell proliferation

Normal blood sugar ≠ Everything is fine with the body.

Hyperinsulinemia is the final warning sign before the blood sugar storm arrives.

Are Insulin Injections “Addictive”?

When doctors recommend insulin supplementation, many people’s first reaction is to refuse due to several common myths:

Myth 1: Getting insulin injections means “it’s very serious”

Insulin supplementation is not a death sentence. Its essence is to let the overworked pancreas rest.

Just like when all employees in a company are exhausted, it doesn’t mean the company is finished; rather, bring in external temp staff first to give our own employees a chance to recover.

Myth 2: Injecting insulin will “make it worse and worse”

Quite the opposite. Delaying it is what makes it worse.

Supplementing with external insulin when beta cells still have 50% left allows them to catch their breath and repair, and they may even recover some function.

But if you hold out until beta cells only have 10% left, the room for recovery at that point will be very limited.

Myth 3: Insulin injections lead to kidney dialysis

The truth is: chronic high blood sugar leads to kidney dialysis.

Chronically high blood sugar damages the microvessels of the kidneys, eventually leading to renal failure.

The role of insulin is precisely to lower blood sugar and protect the kidneys.

Getting insulin is not a sign of “going downhill,” but rather stepping on the brakes to prevent the body from continuing to crash off the cliff.

Protect Your “Insulin System”

Insulin is not the enemy; it is the body’s carefully designed blood sugar regulation mechanism.

The real problem is never insulin itself, but rather that we have pushed this system to the brink of collapse with poor diet and lifestyle choices.

The key to protecting the insulin system is: don’t let the pancreas work to exhaustion.

Reduce refined starches and sugary drinks
Exercise regularly (exercise can directly improve cells’ insulin sensitivity)
Avoid chronically overeating

Understanding and caring for it is the fundamental way to stay away from diabetes.

Reference

How Does Diabetes Develop? Why is Insulin the Master Key to Blood Sugar Control? What is Insulin Resistance? You Can Still Reverse Prediabetes!

Mon, 08 Jun 2026 07:50:00 +0800

What is diabetes? Why is it becoming so common in modern society?

It all comes down to the “energy processing system” in our bodies.

What is the Core Nature of Diabetes?

The food we eat daily (especially carbohydrates) is broken down by our bodies into glucose, which acts as the fuel in our bloodstream.

The insulin secreted by the pancreas works like a “key” that unlocks cell doors, allowing glucose in the blood to enter your cells and transform into energy for walking, thinking, and breathing.

When this “insulin” key breaks or the cell’s lock rusts, glucose cannot enter the cells and starts accumulating in the blood.

When blood sugar spikes, the kidneys try to flush out the excess sugar through urine, which is where the term “diabetes” (sweet urine) comes from.

What are the Main Types of Diabetes?

Type	Percentage	Causes
Type 1 Diabetes	Approx. 5%	The immune system mistakenly destroys the insulin-producing `β cells`, leaving the body completely unable to secrete insulin (no key made)
Type 2 Diabetes	Approx. 95%	`Cells` develop resistance to insulin (rusty lock), and after the `pancreas` burns out, insulin secretion becomes insufficient (not enough keys)
Gestational Diabetes	A minority	Hormones during pregnancy disrupt insulin function, with most cases returning to normal post-delivery

What is “Insulin Resistance”?

For Type 2 Diabetes, which accounts for over 95% of cases, the core problem is insulin resistance.

Think of your cells as residents in a gated community, where insulin acts as the access card at the door.

Normally, when insulin taps the sensor, the cell doors open, and glucose is successfully delivered inside.

However, when someone is in a long-term state of obesity (especially excess visceral fat), sedentary lifestyle, and a high-sugar, high-fat diet, the cell surface becomes clogged with grease.

Even if insulin tries to tap the card, the reader responds sluggishly due to the grease buildup.

As a result, the pancreas has to work overtime, secreting 2 to 3 times more insulin to force the doors open. In the short term, blood sugar levels can barely be kept down, but over the long run, the β cells of the pancreas burn out and can no longer produce enough insulin.

Stage	Condition	Outcome
Early Stage	Cells become numb to insulin (rusty locks)	The `pancreas` works overtime frantically, keeping blood sugar barely normal
Middle Stage	The `pancreas` is overloaded long-term	Blood tests show hyperinsulinemia
Late Stage	`β cells` die off en masse due to burnout	Insulin production plummets, and blood sugar spins completely out of control

Genetics also play a major role. If both parents have Type 2 diabetes, the children’s risk of developing it is as high as 70%.

Genetics determine the inherent “resilience” of your pancreas, while lifestyle factors like obesity and a refined diet act as the hand that flips the switch to trigger diabetes.

What Harm Does High Blood Sugar Do to the Body?

When sugar in the blood cannot enter the cells, it means your blood vessels are essentially soaked in thick syrup for a long time.

This leads to two destructive outcomes:

Type of Damage	Explanation
Vessel Inflammation and Hardening	High sugar concentrations generate massive amounts of free radicals, attacking vessel walls and making them inflamed, stiff, and brittle
Microvascular Blockage	Thick blood flows slower, and the microvessels feeding delicate areas are the first to clog and cut off circulation

Since blood vessels cover the entire body, the damage of high blood sugar is “from head to toe”:

Organ	Damage Caused
Eyes	Microvessels rupture and bleed, potentially leading to blindness in severe cases
Kidneys	The filtration system is ruined, eventually requiring dialysis
Nerves	Hands and feet begin to feel numb or tingle, eventually losing sensation
Heart & Brain	Large blood vessels harden and clog, triggering myocardial infarction or stroke

When treating diabetes, the goal is never just to lower the numbers on your blood sugar meter, but to protect the blood vessels throughout your body.

Can Prediabetes Be Reversed?

Before being officially diagnosed with diabetes, there is a buffer period of about 5 to 10 years called “prediabetes”.

Indicator	Normal	Prediabetes	Diabetes
Fasting Blood Sugar	< 100 mg/dL	100 ~ 125 mg/dL	≧ 126 mg/dL
HbA1c	< 5.7%	5.7% ~ 6.4%	≧ 6.5%

During this stage, you will not experience any symptoms at all—no pain, no discomfort—and it can only be detected through blood tests.

Prediabetes is entirely reversible.

Once you notice numbers crossing the threshold during a health checkup, immediately adjusting your diet, doing regular exercise, and practicing weight management will give you a very high chance of returning blood sugar to normal, preventing it from ever developing into full-blown diabetes.

Studies have shown that losing just 5% to 7% of your initial body weight can reduce the risk of developing diabetes by more than 50%.

Diabetes is Not a Death Sentence; It’s a Warning from Your Metabolic System

Diabetes is not an illness that “suddenly arrives”; it is an alarm sounded by your body after years of experiencing “energy overload”.

Re-evaluating your own eating habits and reducing the burden on your body is the most fundamental way to steer clear of diabetes.

If you or your family members have a history of diabetes, are overweight, or habitually consume refined starch and sugary drinks, you might want to pay closer attention to your fasting blood sugar and HbA1c levels during your next checkup.

Detecting it one step earlier means you can hit the brakes one step sooner.