Most people are aware of type 1 and type 2 diabetes, but did you know there is a type 3 diabetes as well! It is a more obscure term. Although it is not an accepted medical diagnosis, type 3 diabetes has been discussed in the literature as a possible relationship between insulin resistance in the brain and Alzheimer's disease. This link has been described to help explain how metabolic disorders impact brain health, causing cognitive decline and dementia.

What is Type 3 Diabetes?

Type 3 diabetes is more of a misnomer because it should not be confused with type 3c diabetes, which relates to pancreatic dysfunction. The term "type 3 diabetes," on the other hand, has been loosely used by some scientists to analogously propose that Alzheimer's disease is strongly implicated with insulin resistance in the brain.

This concept was conceptualized by Dr. Suzanne de la Monte and Dr. Jack Wands of Brown University in the year 2008. This hypothesis postulated that Alzheimer's disease may be called type 3 diabetes for it bears many similarities with glucose metabolism disorder type 2 diabetes. Their concept arises from the basic principle that insulin is fundamental to blood sugar regulation, but it is also the case with the brain. When brain cells become insulin-resistant, they lose access to glucose, impairing their function.

Research published in the Journal of Diabetes Science and Technology supports this hypothesis by indicating that insulin resistance can be a significant contributor to the occurrence of dementia, also referred to as Alzheimer's. The symptoms of memory loss and diminished reasoning are associated with impaired glucose metabolism in the body, especially in the cerebral tissue.

Symptoms of Type 3 Diabetes

Although type 3 diabetes is not a "medical term," its symptoms correlate well with Alzheimer's diseases that are known to reduce the ability to think in an efficient manner and bring down brain health. These signs are:

- Loss of memory, especially short-term.

- Poor judgment and judgment ability

- Failure in recognizing people or places familiar once.

- Failure in the process of reading, writing or processing numbers

- Anxiety, agitation, or mood changes.

- Disorganized thoughts or confusion

- Lack of impulse control

As the disease advances, patients may be afflicted with severe complications including an inability to swallow or control their bodily functions. In the final stages, most patients die from fatal complications such as aspiration pneumonia.

Causes of Type 3 Diabetes

This may not be well understood with regards to type 3 diabetes, or the exact link between insulin resistance and Alzheimer's disease. Some identified contributing factors include the following:

1. Insulin Resistance

Insulin acts as an important regulatory mechanism of brain functions such as memory and cognition. The reduction in insulin signaling may impair metabolism of brain cells, thus bringing about neurodegeneration.

2. Type 2 Diabetes

These diseases show a strong relationship and those individuals diagnosed with type 2 diabetes have double chances of getting Alzheimer's. In the two, the main causes can be chronic inflammation, oxidative stress, and a defect in glucose metabolism.

3. Environmental and Lifestyle Factors

Insulin resistance associated with obesity, stress, and an unhealthy diet is considered a cause that may increase the chances of Alzheimer's disease.

Researches in Frontiers in Neuroscience and The Lancet Neurology have also highlighted that drugs used for antidiabetic medication may be crucial for the prevention or at least slowing down the course of Alzheimer's.

Treatments for Type 3 Diabetes

In 2022, in a study in Pharmaceuticals, researchers studied biomarker uptake in brain regions implicated in the faulty uptake and metabolism of blood sugar in Alzheimer’s patients.

Emerging Therapies

Research into such treatments as intranasal insulin has also been promising. Intranasal delivery of insulin directly to the brain has been reported to enhance glucose uptake by brain cells, improve memory, and boost cognitive performance. While such clinical trials have been shown to be successful, additional research is needed for safety and efficacy.

Medications

For patients being aggressive or agitated, antipsychotic drugs may be prescribed; however, therapies such as cognitive rehabilitation as well as cognitive stimulation therapy serve to preserve memory and executive function.

Lifestyle Interventions

Diet, exercise, and stress management are critical in preventing and managing insulin resistance. A review in the Journal of Alzheimer's Disease also highlighted the benefits of Kirtan Kriya meditation, which can regulate genes involved in insulin and glucose metabolism, improve sleep, and reduce inflammation.

Can Type 3 Diabetes Be Prevented?

Although type 3 diabetes is not officially recognized, its connection to Alzheimer’s disease underscores the importance of proactive measures for brain health. Some prevention strategies include:

1. Healthy Diet

Consuming a balanced diet rich in antioxidants, whole grains, and healthy fats may support brain health.

2. Regular Exercise

Physical activity improves insulin sensitivity, reduces inflammation, and enhances overall metabolic health.

3. Stress Reduction

Mindfulness practices, including meditation, have been shown to lower stress levels, which can reduce the risk of cognitive decline.

The term type 3 diabetes brings out the complex relationship between metabolic disorders and brain health. Even though it is not a recognized medical condition, the concept emphasizes the crucial role of insulin in brain function and its possible contribution to Alzheimer's disease. Continued research will hopefully provide hope for therapies such as intranasal insulin and lifestyle modifications.

Living with someone who has hepatitis can be worrying. People tend to immediately wonder whether they are at risk simply by sharing meals, hugging, or living under the same roof.

Fortunately, the answer depends on the type of hepatitis, and in most cases, everyday household contact does not spread the virus.

Dr. Shalimar, Prof. Department of Gastroenterology, AIIMS explains, "Hepatitis means inflammation of the liver. There can be many causes, but viral hepatitis is one of the most common. There are different hepatitis viruses, including A, B, C, D, and E. Some cause acute illness, while others can lead to long-term liver damage, including cirrhosis and liver cancer."

Experts say misinformation surrounding hepatitis often leads to unnecessary fear and stigma, causing patients to feel isolated. Understanding how different hepatitis viruses spread can help families protect themselves without avoiding normal interactions.

Can You Get Hepatitis By Living With Someone?

Dr Nanda Kishore M, Gastroenterology, Athulya Geriatric Care Hospital, answers our question, "No, Hepatitis is not a communicable disease that spreads through everyday contact such as hugging, holding hands, coughing, or sneezing."

For most forms of hepatitis, the answer is no. However, hepatitis B is spread through contact with infected blood and certain body fluids. Household transmission is possible, but it generally occurs when infected blood enters another person's bloodstream.

Possible household risks include sharing:

• Razors
• Toothbrushes
• Nail clippers
• Glucose monitoring devices
• Any item contaminated with blood

Also read: Can Hepatitis Be Completely Cured? Understanding What Treatment Can Achieve

Dr. Kishore says that the mode of transmission largely depends on the type of hepatitis infected.

He says, "Hepatitis A and E are predominantly spread via means of contaminated food and water, while Hepatitis B and C are transmitted through infected blood and certain bodily fluids."

Hepatitis B is preventable by vaccine. Household members of someone with chronic hepatitis B are usually advised to get tested and vaccinated if they are not already immune.

Dr. Shalimar says, "For hepatitis B, current treatment controls the infection, and newer therapies under development offer hope for a functional cure in the future. Vaccination has dramatically reduced hepatitis B in many parts of the world. Expanding vaccination coverage remains one of the most effective ways to prevent the disease."

Living with a hepatitis infected individual is generally safe given that basic hygiene and recommended precautions are followed strictly. Understanding these facts helps reduce unnecessary fear and stigma associated with it.

Also read: Grade-1 Fatty Liver: More Indians Are Developing It at Lower BMIs. What's Behind the Shift?

Importance of Screening & Prevention

Living with someone who has hepatitis does not mean you need to keep your distance. Instead, focus on practical precautions:

• Never share personal items that may come into contact with blood.
• Cover cuts and wounds.
• Wear disposable gloves while cleaning blood spills.
• Practice good hand hygiene.
• Ensure hepatitis B vaccination if recommended.
• Attend regular medical follow-ups if advised by your healthcare provider.

Dr. Ankur Jain, Associate Director & Unit Head, Gastroenterology, Hepatology & Endoscopy, Max Hospital, Dwarka, explains, "Hepatitis B and Hepatitis C continue to affect millions of people worldwide and remain major causes of liver cirrhosis and liver cancer. Individuals with a history of blood transfusions before routine screening, unsafe injections, or other risk factors should discuss screening with their physician.

He adds, "The liver has an extraordinary capacity to heal, but only if we identify problems early and address the underlying causes. Prevention, timely screening, and simple lifestyle modifications remain our most powerful tools in reducing the growing burden of liver disease in India."

Hepatitis remains one of the most misunderstood liver conditions, largely because it isn't a single disease but a group of infections—A, B, C, D, and E—each of which behaves very differently once it enters the body.

The question "can hepatitis be cured?" doesn't have one straightforward answer. The truth lies somewhere between full recovery and lifelong management, depending entirely on which type of hepatitis a person has contracted.

Not All Hepatitis Is the Same

Hepatitis A and E are generally short-lived infections. The liver, in most cases, clears these viruses naturally without any specific antiviral medication. Rest, hydration, a balanced diet, and avoiding alcohol are usually enough to help the body recover fully. Chronic infection is rare with these two types, and when it does occur, particularly with Hepatitis E in people with weakened immunity, it can still be treated successfully.

Hepatitis C tells a much more encouraging story. Thanks to advances in medicine, Direct-Acting Antivirals, or DAAs, now cure more than 95 percent of cases. These are oral tablets taken for roughly eight to twelve weeks, and they carry minimal side effects compared to older treatments. For patients diagnosed early, Hepatitis C is, quite genuinely, curable.

Where Treatment Manages Rather Than Cures

Hepatitis B and D are a different story altogether. When the infection is acute, the body often fights it off on its own without much trouble.

Chronic cases, though, are far tougher to deal with. As of now, no medication can fully remove the Hepatitis B virus from the body once it settles in. What doctors can do is keep it under control, usually through antiviral tablets or interferon injections, so that it doesn't quietly damage the liver over time and lead to cirrhosis or cancer. For many patients, this isn't a short course of treatment. It's something they may need to stay on for years, and in several cases, for the rest of their lives.

Hepatitis D is considered the more severe of the two, and it only shows up in people who already have Hepatitis B; it cannot infect someone on its own. Treatment choices here are still quite limited. A few newer drugs have shown some promise in keeping the disease in check, but nothing yet counts as an actual cure. When the liver damage has progressed too far, a transplant sometimes becomes the only way forward.

Why Early Diagnosis Changes The Outcome

The single most important factor in determining outcomes across all types of hepatitis is timing. Detected early, Hepatitis C can be eliminated. Detected early, Hepatitis B can be controlled well enough that liver damage never progresses. Left unchecked, however, both can silently damage liver tissue for years before symptoms even appear.

Regular liver function tests, hepatitis screening for those at risk, and vaccination—especially for Hepatitis B—remain the strongest tools available for prevention and timely intervention.

The Bottom Line

Hepatitis doesn't follow a single script, and that's something patients often find confusing at first. Some forms clear up completely with the right treatment, others require ongoing management to keep the virus in check, and in many cases, vaccination and timely screening make the real difference in avoiding complications down the line.

Knowing exactly which type of hepatitis one is dealing with is what allows a doctor and patient to set realistic expectations and work out a treatment plan that actually fits the situation.

The rise of GLP-1 medications such as Ozempic (semaglutide), Wegovy, Mounjaro, and Zepbound (tirzepatide) has transformed obesity and diabetes treatment.

However, soaring demand and earlier drug shortages also fueled the rapid growth of compounded GLP-1 drugs, which are now under increasing scrutiny from regulators and medical experts.

Over the past few months, the U.S. Food and Drug Administration (FDA) has intensified its crackdown on compounded GLP-1 products, warning that patients could face quality, dosing, and safety concerns if they obtain these medications from unlawful sources.

What Are Compounded GLP-1 Drugs?

A compounded drug is a medication that is custom-made by a licensed compounding pharmacy to meet an individual patient's specific medical needs. For example, removing an allergen, changing the dosage, or preparing a formulation that is not commercially available.

The FDA said, "Compounded drugs are not FDA-approved, which means the agency does not review them for safety, effectiveness or quality before they are marketed."

Also read: People Are Microdosing GLP-1 Weight Loss Drugs; What Do Experts Have To Say About It?

Why Have Compounded GLP-1 Drugs Become Popular?

Demand for GLP-1 medications for weight loss skyrocketed worldwide between 2022 and 2025, leading to shortages of semaglutide and tirzepatide.

During these shortages, compounding pharmacies were legally allowed under specific circumstances to prepare several versions of these medications.

Many patients turned to compounded GLP-1s because they were often affordable, available, and easier to buy online.

Also read: Can GLP-1 Drugs Like Ozempic, Mounjaro Cause Hair Loss? Study Says It's Rare But Real

FDA Is Tightening Scrutiny

FDA's efforts to restrict this practice include widespread compounding of semaglutide, tirzepatide, and liraglutide.

The agency has proposed excluding these drugs from the list of bulk substances used for large-scale compounding because FDA-approved alternatives are now available.

It has also issued warning letters to companies producing compounded GLP-1 products outside permitted circumstances.

Also read: Novo Nordisk Sues Eli Lilly Over Weight-Loss Drug Ads: Should GLP-1 Users Be Concerned?

Recent Research Raises New Concerns

A new University of Colorado Anschutz Medical Campus secret shopper study published in July 2026 found that the compounded GLP-1 market remains active even after shortages have been curbed.

Researchers reported that many online pharmacies were still selling compounded semaglutide or tirzepatide, with some products originating from pharmacies lacking compounding licenses.

Potential Risks of Compounded GLP-1 Drugs

Inaccurate Dosing

Small differences in concentration may result in patients receiving too much or too little medication.

Sterility Concerns

Injectable medicines must be manufactured under strict sterile conditions. Improper preparation increases the risk of contamination.

Different Ingredients

Some compounded products have reportedly used semaglutide salts or added vitamins and other substances that are not present in FDA-approved versions. The FDA has previously stated that certain semaglutide salt forms have not been demonstrated to be safe or effective.

Limited Safety Data

Because compounded products are not FDA-approved, they have not undergone the rigorous clinical trials evaluating effectiveness, manufacturing consistency, and long-term safety.

Counterfeit or Unregulated Products

Experts warn that some websites advertise compounded GLP-1 medications that may not come from legitimate pharmacies at all.