What Is Type 3 Diabetes? Insulin Resistance In The Brain That Could Trigger Alzheimer’s

Updated Jun 7, 2025 | 11:15 AM IST

SummaryDid you know type 3 diabetes, linked to insulin resistance in the brain, is associated with Alzheimer’s disease? It highlights how metabolic disorders can affect memory, cognition, and brain health.
What Is Type 3 Diabetes? Insulin Resistance In The Brain That Could Trigger Alzheimer’s

Image Credit: Canva

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.

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Heart Valve Clips Explained: How a Tiny Clip Can Help Repair a Leaking Valve

Health and Me

Updated Sep 30, 2026 | 11:00 AM IST

SummaryHeart valve clips can repair certain leaking valves without open-heart surgery by bringing valve leaflets together, reducing leakage and potentially improving symptoms and heart function.
Heart Valve Clips Explained: How a Tiny Clip Can Help Repair a Leaking Valve

Credit: AI

Heart clips—also referred to as heart valve clips—are part of a minimally invasive medical procedure known as Transcatheter Edge-to-Edge Repair (TEER). Designed to repair leaking heart valves without open-heart surgery, this advanced treatment restores proper blood flow, relieves debilitating symptoms, and helps patients return to their daily lives.

Understanding Valve Leakage and Symptoms

The heart's valves rely on thin flaps of tissue called leaflets to regulate blood flow.

  • The mitral valve (located on the left side of the heart) typically has two leaflets.
  • The tricuspid valve (located on the right side of the heart) usually consists of three leaflets.
Under normal conditions, these leaflets close tightly together every time the heart pumps. This seal prevents blood from flowing backward, ensuring it moves forward through the body rather than backing up into the lungs.

When a valve is leaking, the leaflets fail to close completely, leaving a gap. Blood leaks backward through this opening toward the lungs, increasing lung pressure and directly causing chronic breathlessness and fatigue.

Also read: 100% Blockage At 18, 25% Patients Under 40: On World Heart Day, Cardiologists Reveal An Alarming Heart Attack Pattern

How the Clip Repair Procedure Works

During a Transcatheter Edge-to-Edge Repair, cardiologists repair the valve using a tiny clip delivered through the vascular system:

  1. Catheter Access: Guided by continuous echo imaging, doctors insert a catheter into a blood vessel in the groin and navigate it directly to the heart.
  2. Targeting the Valve: The catheter goes to the left side of the heart for a mitral valve repair or to the right side for a tricuspid valve repair.
  3. Identifying the Leak: Imaging pinpoints the exact spot where the leaflets fail to seal.
  4. Deploying the Clip: The doctor positions and deploys the clip across the leaking gap, grasping the two opposing leaflets and pulling them closer together.
  5. Evaluating the Seal: Before releasing the clip completely, doctors perform an echocardiogram to confirm that the clip is strongly anchored, that the backward leak is fixed, and that the risk of clip detachment (embolization) is negligible.
Also read: World Heart Day: You Feel Healthy. But Plaque May Already Be Building In Your Arteries In Your 20s

Immediate Relief and Long-Term Healing

Once the clip brings the leaflets together, backward leakage stops immediately, allowing the entire volume of blood to pump forward as intended.

  • 24-Hour Recovery: Pressure inside the lungs drops rapidly once the leak is sealed. Many patients notice a dramatic improvement in their breathing within 24 hours of the procedure.
  • 3 to 6 Month Integration: Over a period of three to six months, surrounding heart tissue naturally grows over the clip (endothelialization), permanently integrating it into the heart structure.

Smooth Hospital Stay and Recovery

Because the procedure is catheter-based rather than open-chest, patient recovery is remarkably swift:

  • In-Room Extubation: Patients are taken off the ventilator right on the procedure table.
  • Minimal Closure Site: The groin entry point is closed cleanly using specialized sutures (such as ProGlide or a figure-of-eight suture).
  • Quick Discharge: Patients typically spend just one day in the Intensive Care Unit (ICU) before moving to a standard room, after which they can return home and resume normal daily activities.
By Dr. Ravinder Singh Rao, Interventional Cardiologist, Vice Chairman at RHL Rajasthan Hospital

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Frequent Cannabis Users Developed Drug-Resistant Epilepsy 13 Years Earlier Than Non-Users: Study

Updated Sep 29, 2026 | 07:01 PM IST

SummaryA recent study published in 'Epilepsia' has found link between frequent recreational cannabis use and worsening seizures in patients with epilepsy.
Frequent Cannabis Users Developed Drug-Resistant Epilepsy 13 Years Earlier Than Non-Users: Study

Credit: AI

Frequent cannabis use may worsen epilepsy-related symptoms, new research. It discovered that raised that people with drug-resistant epilepsy who used cannabis often had more frequent convulsive seizures and sought advanced epilepsy care much sooner than non-users.

Published in Epilepsia, the study analysed health records of 64 adults with drug-resistant epilepsy. It found that frequent cannabis users reached an intensive epilepsy monitoring stage an average of five years after their first seizure, compared to 18 years reported among non-users.

The difference of 13 years is attention-worthy but it must be noted that the study shows an association, not proof that cannabis worsens epilepsy.

Seizures Doubled In Cannabis Users With Epilepsy

Researchers compared 22 people who used cannabis at least 20 days a month to 42 people who did not.

The frequent users reported to have a heavier burden of seizure, one of the symptoms of epilepsy. They had more than twice as many convulsive seizures per year than non-users.

About 91% of frequent cannabis users experienced convulsive seizures, compared to roughly half of the non-users.

Seizures involve stiffening and jerking of the body and loss of consciousness. They constitute medical emergency as they are associated with sudden death in epilepsy.

Also read: Does Cannabis Really Help You Sleep? Experts Say It Is Complicated

What Does Drug-Resistant Epilepsy Mean?

Epilepsy is considered drug-resistant when seizures continue despite appropriate treatment with two antiseizure medications.

People with drug-resistant epilepsy may need to visit specialised epilepsy centres, where doctors can monitor them and recommend changes in medication, surgery, or other treatment options. In this study, frequent cannabis users reached this stage much earlier.

They were also discharged from hospital after taking an average of 3.05 antiseizure medications, compared with 2.21 among non-users.

Also read: Why Can’t Millennials Sleep? The Crisis Keeping An Entire Generation Up At Night

Cannabis & Epilepsy

This was a retrospective study based on health records of a small sample size. There may be other differences between people who used cannabis often and those who did not that could affect the severity of the seizures.

However, researchers were able to establish the timing of cannabis use for 15 of the 22 users. All 15 had started using cannabis before their first seizure, making it less likely that they had simply begun using cannabis to cope with an already existing seizure disorder.

The researchers say larger studies can determine whether cannabis contributes to worsening seizures.

The association between cannabis and seizures is complicated as CBD (cannabidiol) is reported to have beneficial effect on severe epilepsy.

To understand the seeming contradiction, we must understand the distinction between cannabis and purified cannabidiol (CBD).

A purified form of CBD is an approved treatment for certain severe forms of epilepsy. CBD is different from THC, the psychoactive element responsible for the “high” associated with cannabis. Recreational cannabis products may contain high concentrations of THC.

According to the researchers, animal studies suggest CBD can suppress seizures, while THC may have the opposite effect.

Hence, evidence that a specific CBD-based medicine can help certain epilepsy syndromes cannot be used to conclude that recreational cannabis is an epilepsy treatment.

Researchers suggest that THC acts on receptors concentrated in brain regions involved in seizures, raising the possibility that cannabis could influence how brain circuits fire. But this is a hypothesis that needs further investigation.

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Can You Recover from a Stroke? Treatment & Rehabilitation Journey Explained

Updated Sep 29, 2026 | 01:30 PM IST

SummaryStroke recovery is possible, with outcomes depending on the type and severity of stroke. Timely treatment, rehabilitation and long-term risk-factor management can improve recovery and independence.
Can You Recover from a Stroke? Experts Break Down the Treatment Journey

Credit: iStock

A stroke changes the life of a person in an instant, making everyday activities like walking, talking, or even holding a cup difficult. But strokes do not always mean these challenges are permanent. Many people recover lost abilities and enhance their lives with timely treatment, proper rehabilitation and continued support.

A stroke occurs when blood stops flowing to the brain or a blood vessel in the brain bursts, cutting off oxygen to brain cells. It can cause weakness or paralysis, speech problems, poor balance, or memory issues, or trouble swallowing, depending on the part of the brain that is affected.

Tips to Support Recovery from Stroke

  • Begin rehabilitation immediately after a stroke
  • Attend Physiotherapy and speech Therapy sessions regularly
  • Take prescribed medications as directed.
  • Keep blood pressure, diabetes and cholesterol under control.
  • Have a healthy and nutritious diet to restore energy.
  • Stay physically active
  • Seeking emotional and psychological support

Also read: 100% Blockage At 18, 25% Patients Under 40: On World Heart Day, Cardiologists Reveal An Alarming Heart Attack Pattern

The Treatment Journey:

Timely Medical Care Makes a Big Difference

Patients who reach the hospital within a certain time may be eligible for clot-busting medications or clot removal procedures. These procedures restore blood flow, reduce brain damage and increase the likelihood of faster recovery.

Rehabilitation starts immediately after stroke

Stroke care extends beyond emergency treatment. Rehabilitation begins within 24 hours after a stroke when the patient is medically stable. A team of specialists, including neurologists, physiotherapists, and speech therapists, works together to help the patient regain function, rebuild confidence and return to everyday activities as soon as possible.

Physical Therapy to Rebuild Body Movement and Independence

When a stroke happens, muscles on one side of the body may become weak or paralysed, affecting the patient's strength, balance, coordination, posture, and walking.

Physiotherapy consists of a series of exercises, muscle training and mobility techniques that enhance mobility of the body and improve functional independence. Many patients can perform activities with greater ease with regular rehabilitation.

Also read: Weekend Workouts: Why Sudden Intense Exercise May Put Stress on Your Heart

Enhancing communication and cognitive skills

After a stroke, some patients have problems talking, speaking, swallowing, remembering or concentrating. Speech and language therapy are used to help with communication and safe swallowing, and cognitive rehabilitation is used to support memory, attention, reasoning and problem solving. These therapies assist patients in re-entering the workforce, social circles and independent living more smoothly.

Modern Rehabilitation Methods for Better Recovery

Advances in rehabilitation have expanded the range of therapies available to support stroke recovery.

Techniques like robot-assisted rehabilitation, functional electrical stimulation (FES), virtual reality-based therapy, constraint-induced movement therapy, balance training systems and computer-assisted gait training complement conventional rehabilitation very well. These methods provide repetitive, targeted exercises that promote functional improvement in the brain and body.

Managing Ongoing Challenges

After a stroke, some patients have muscle stiffness (spasticity), chronic pain or trouble walking or moving their hands. They are treated with medications, injections and continued rehabilitation therapy.

Recovery from a stroke is much better with proper rehabilitation. While some regain most of their abilities, others continue to need support, making patience and consistency just as important as medical help. The right care at the right time makes a big difference in rebuilding your life.

By Dr. (Lt Gen) CS Narayanan, VSM, Chairman - Manipal Institute of Neuro Sciences, Manipal Hospital, Dwarka, New Delhi

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