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

Updated Dec 3, 2024 | 06:13 PM 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

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

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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Aarogya Setu 2.0: From Locating Closest Hospitals To Managing Insurance, 5 Everyday Problems It Aims To Solve

Updated Jun 30, 2026 | 03:00 PM IST

SummaryAarogya Setu 2.0 has been transformed into a comprehensive health app. It is now better equipped to improve everyday healthcare for the public.
Aarogya Setu 2.0: From Locating Closest Hospitals To Managing Insurance, 5 Everyday Problems It Aims To Solve

Credit: AI-generated image

Aarogya Setu started as a contact-tracing and tracking app during the COVID-19 pandemic. But it underwent a significant transformation since its initial launch. Now, years after its launch, the Centre has launched Aarogya Setu 2.0.

Aarogya Setu 2.0 Aims To Solve Everyday Healthcare Problems

Instead of focusing only on infectious diseases, Aarogya Setu 2.0 now acts as a comprehensive healthcare app that provides a range of healthcare services. Its features are designed to change the way you obtain medical services in hospitals and other healthcare facilities.

It can help users store, retrieve, and manage their medical records, access various services, and simplify everyday healthcare tasks. Apart from data and records storage, the app can help users locate the nearest hospitals, manage their prescriptions, and track their insurance coverage seamlessly. The revamped platform is designed to address common challenges patients face while navigating India's healthcare system.

Here's a closer look:

Finding Closest Hospitals

One of the most useful features Aarogya Setu 2.0 provides is access to the locations of the closest hospitals and healthcare facilities. In times of emergencies, this feature could prove to be lifesaving as it could save valuable time when immediate medical attention is needed.

The app has also enabled searching for PM-JAY empanelled hospitals. This feature is integrated with Pradhan Mantri Jan Arogya Yojana, allowing users to search for empanelled hospitals offering cashless treatment. Users can easily find authorized hospitals and access free or subsidized care.

Read more: Ebola Outbreak Spreads To Fourth Province In DR Congo As Cases Rise To 1,274

Retrieving Medical History During Doctor Visits

Patients often struggle to recall their medical history, including details like previous illnesses, surgeries, allergies, medications, or vaccinations during a consultation. It often hinders the diagnostic process as the doctor does not have a comprehensive picture of the patient’s health.

The platform provides users with easy access to their health records, making it simpler to share relevant information with their healthcare providers whenever needed.

Read more: Leptospirosis In Monsoon: Expert Explains Why Early Detection & Prevention Is A Must

Avoiding Repetitive Diagnostic Tests

Patients are often compelled to undergo the same diagnostic tests and scans simply because their previous reports get misplaced. This not only increases healthcare costs but also causes inconvenience. Easy access to past laboratory reports can help patients avoid unnecessary repeat tests.

Simplifying Insurance And Cashless Treatment

Medical insurance paperwork often involves submitting hospital documents, prescriptions, diagnostic reports, and discharge summaries. Since many of these records are scattered across different hospitals or stored as paper documents, patients may spend considerable time collecting them.

With digital health records stored in one place, users may find it easier to retrieve documents required for insurance claims or cashless hospitalization, potentially reducing paperwork and delays.

Making Healthcare More Portable

Aarogya Setu 2.0 allows users to securely store and access digital health records through integration with India's digital health ecosystem. Having previous prescriptions and reports readily available can help both patients and healthcare providers make informed decisions.

This is particularly useful for individuals who relocate frequently and suffer from chronic conditions such as diabetes, hypertension, asthma, thyroid disorders, or kidney disease that need long-term monitoring.

Changing cities usually means changing doctors and hospitals. In the absence of a complete medical history, one is more likely to incur additional healthcare costs of retaking the tests.

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Mental Health Toll Of Heatwaves: How Extreme Heat Affects People Psychologically

Updated Jun 30, 2026 | 07:00 AM IST

SummaryApart from physiological impact, extreme heat can drive certain mental health issues and worsen pre-existing ones. In light of evident climate change, highlighting the psychological impact of extreme heat has become more important than ever.
Mental Health Toll Of Heatwaves: How Extreme Heat Affects People Psychologically

Credit: AI-generated image

As heatwaves have become more frequent and intense across the globe, health experts are increasingly warning that soaring temperatures affect far more than physical health. While dehydration, heat exhaustion, and heatstroke are common physiological effects of heatwaves, extreme heat can also take a significant toll on mental wellbeing.

Mental Health Toll Of Extreme Heat

HealthandMe spoke to Dr. Samant Darshi, Consultant - Psychiatrist & Neuromodulation Expert, Psymate Healthcare, Noida, about the psychological impact of extreme heat.

In hot weather, the human body constantly works to maintain a stable internal temperature. During periods of extreme heat, this process becomes increasingly challenging, placing considerable strain on both the body and brain.

Dr Darshi explains, “The high temperatures during heat waves can have a strong influence on not only physical but also the psychological state of people. The hot weather causes irritation, nervousness, stress, and frustration. Sleep disturbance associated with the hot weather only complicates the process of keeping a good mood.”

Living in higher temperatures is slowly becoming the new norm in several countries. With climate change driving longer and more intense heat events, understanding the psychological impact of extreme heat has become more important than ever.

Extreme Heat Can Worsen Serious Mental Health Issues

Additionally, research has shown that prolonged exposure to heat can worsen stress, anxiety, irritability, and even increase the risk of severe mental health crises. Moreover, people's ability to think logically is affected by heat; memory, attention, and overall productivity decrease in extreme temperatures.

Dr Darshi says, “People with some pre-existing mental health conditions (depression, anxiety disorders, schizophrenia, etc.) can suffer from worsening their symptoms during prolonged heatwaves. The side effects of some medications that are used for the treatment of mental illnesses include the disturbance of the processes of thermoregulation in the organism.”

High temperatures can also disrupt sleep, hamper hormone levels, and affect neurotransmitters like serotonin and dopamine, which play a key role in regulating mood. Sleep deprivation, a common consequence of hot nights, can further intensify emotional distress, making people feel more anxious, irritable, or overwhelmed.

Heatwaves Drives Isolation

As temperatures soar, people generally avoid stepping out, becoming increasingly secluded. Lack of social interactions triggers the brain’s primal ‘survival threat’ alarm, which can lead to excessive stress, poor emotional regulation, and increased risk of anxiety and depression.

It especially affects older people and other vulnerable groups. Social isolation can cause psychological problems in terms of loneliness and depression. In extreme cases, prolonged exposure to heat causes aggression, self-harm, and other mental health crises.

How To Protect Your Mental Wellbeing During A Heatwave

While one has little to no control over the weather, certain measures can help reduce the mental strain caused by extreme heat:

  • Staying hydrated throughout the day.

  • Keeping indoor spaces cool using fans, curtains, or air conditioning where possible.

  • Avoiding strenuous activities during the hottest hours.

  • Prioritizing good sleep hygiene and keep bedrooms as cool as possible.

  • Checking in regularly with family members, friends, and neighbours, particularly those living alone.

  • Seek professional support if feelings of anxiety, depression, or distress become overwhelming.

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Leptospirosis In Monsoon: Expert Explains Why Early Detection & Prevention Is A Must

Updated Jun 29, 2026 | 10:25 PM IST

SummaryThe monsoon season comes with the risk of several infectious diseases, including leptospirosis. Also known as "rat fever", if treatment is delayed, leptospirosis can lead to life-threatening complications.
Leptospirosis In Monsoon: Expert Explains Why Early Recognition & Prevention Is A Must

Credit: AI-generated image

Leptospirosis gained attention after its cases surged in Kerala recently. The infection has also been reported in Maharashtra, Gujarat, Tamil Nadu, and Karnataka. The bacterial infection typically spreads via contact with water or soil that has been contaminated by the urine of animals infected with leptospirosis, especially during floods.

As monsoons are right at our doors, know why it is important to detect and nab dangerous infections like leptospirosis early.

What Is Leptospirosis?

Leptospirosis is a potentially serious bacterial infection sometimes called the "rat fever" because it can cause symptoms similar to the typical symptoms of common viral infections, which may not be noticeable in the early stages. It is caused by the bacteria of the genus Leptospira that are excreted in the urine of infected animals, including rats, cattle, dogs, and pigs.

In the monsoon season, there is a risk of waterlogging and contaminated animal urine mixing with floodwater and soil. Infestation occurs through direct contact with contaminated water or mud on cuts or abrasions or on the mucous membranes of the mouth, nose, and eyes. Those involved in outdoor work, sanitation, farming, construction, or who are walking in flooded streets are especially at risk.

Combating Leptospirosis In Monsoon

Health and Me spoke to Dr. Sundar Krishnan, Senior Consultant - Internal Medicine, KIMS Hospital, Thane, about how to tackle leptospirosis this monsoon.

Dr. Krishnan says, “In the early stages, it may have flu-like symptoms, and that makes early recognition challenging. Symptoms are sudden onset of high fever, chills, very severe headache, muscle pain especially in the calves and lower back, fatigue, nausea, vomiting, and red eyes.”

The expert also said that occasionally, the patient may also have abdominal pain or diarrhea. He also says it can escalate quickly to jaundice, kidney failure, difficulty breathing, meningitis, internal bleeding, or multi-organ failure and can require immediate medical care.

Dr. Krishnan recommends several prevention tips to tackle leptospirosis in monsoon:

  • Avoiding contact with contaminated water by staying out of flooded areas whenever possible.
  • Wearing waterproof boots and gloves for extra protection.
  • Covering cuts or wounds with waterproof dressings before entering flood water.
  • Maintaining good personal hygiene, washing hands and feet extensively after contact with flooded and stagnant water.
  • Getting out of wet clothes as soon as possible.
  • Taking measures for proper waste disposal to control rat infestation.
  • Raising awareness and educating the public about the risk of leptospirosis during the rainy season.

If leptospirosis is diagnosed early and treated with antibiotics, recovery is much quicker, avoiding life-threatening complications. But if detection and treatment are delayed, the kidneys, liver, lungs, and even the brain may be affected.

The expert advises that people who are ill after being exposed to flood water and are facing fever or flu-like symptoms for more than two days should also seek medical help as soon as possible, informing their doctor about their flood water exposure.

Even though the risk of leptospirosis is high during the monsoon, the best way to steer clear of this infection is to educate the masses about its symptoms and prevention. Early clinical intervention can help de-escalate the situation promptly.

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