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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Headache, Swelling, Vision Changes: Preeclampsia Signs In Women

Updated Jun 4, 2026 | 06:00 PM IST

SummaryUntreated preeclampsia can lead to complications like seizures.
Preeclampsia

Stress and long working hours can worsen preeclampsia in women. (Photo credit: AI generated)

Many working women who are pregnant tend to dismiss signs such as headaches, swelling, or vision changes, thinking that they are common during pregnancy. However, these issues can be caused by preeclampsia, a serious condition that requires timely attention, especially among busy working women.

What is preeclampsia?

Dr Prachi Sarin Sethi, Senior Consultant – Obstetrician, Gynaecologist & Laparoscopic Surgeon, Motherhood Hospitals, Gurgaon, said, "Pregnancy comes with many physical changes, and it is common for women to experience discomfort such as swelling, fatigue, or headaches. However, sometimes these symptoms may point to something more serious, namely preeclampsia, a pregnancy-related condition that can affect both the mother and baby. Working women tend to ignore the signs of this condition and struggle in silence. Preeclampsia is a condition that usually develops after the 20th week of pregnancy. It is mainly characterised by high blood pressure and can affect organs such as the liver and kidneys. If not managed in time, it can lead to serious complications for both mother and baby."

What are the causes of preeclampsia?

The exact cause of preeclampsia is not known. Certain factors increase the risk, including:

  1. High blood pressure before pregnancy
  2. First pregnancy
  3. Multiple pregnancies (twins or more)
  4. Obesity or diabetes
  5. High stress levels and lack of rest

What are the symptoms of preeclampsia?

Many symptoms of preeclampsia are mistaken for normal pregnancy changes. These include:

  1. Persistent headaches
  2. Swelling in the face, hands, or feet
  3. Blurred vision or light sensitivity
  4. Sudden weight gain
  5. Pain in the upper abdomen

Consequences of untreated preeclampsia

Working women may ignore these signs due to work pressure, long hours, or frequent travel, assuming they are just tired or stressed. If left untreated, preeclampsia can lead to serious complications such as:

  1. Preterm delivery
  2. Low birth weight of the baby
  3. Organ damage in the mother
  4. Seizures (a severe condition called eclampsia)

Early detection and proper care can help manage the condition and reduce risks.

This is why working women miss the signs

In today’s fast-paced lifestyle, many women continue working through pregnancy without slowing down. Long working hours, stress, irregular meals, and lack of rest tend to worsen symptoms. Many women delay check-ups or ignore warning signs, thinking they are minor issues.

What can women do?

Report any signs and symptoms, such as headaches and vision changes, to a doctor. De-stress by practising yoga and meditation. Monitor blood pressure regularly, avoid overexertion, and maintain a balanced diet consisting of fresh fruits, vegetables, whole grains, and pulses. Avoid junk, oily, and canned foods. It is also necessary to stay hydrated, attend regular health check-ups, and follow-up appointments.

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Study Shows Osteoarthritis Affecting Patients In Their 30s: How To Prevent It

Updated Jun 4, 2026 | 05:00 PM IST

SummaryThe condition is driven by a combination of biological, biomechanical, metabolic, genetic, and molecular factors, but in youth obesity and poor lifestyle is surging the cases.
Study Shows Osteoarthritis Affecting Patients In Their 30s: How To Prevent It

Credit: iStock

Osteoarthritis (OA), long considered a “wear-and-tear” disease of old age, is increasingly being diagnosed in people as young as 30, according to new research.

The review by researchers at Indraprastha Apollo Hospitals suggests OA should be viewed as a heterogeneous syndrome rather than a single disease. The condition is driven by a combination of biological, biomechanical, metabolic, genetic, and molecular factors, but in youth obesity and poor lifestyle is surging the cases.

“Osteoarthritis is no longer confined to the elderly — we are now seeing patients as young as 30, often driven by obesity and sedentary lifestyles. This research makes clear that osteoarthritis is not a single disease but a spectrum of conditions,” said Dr. (Prof.) Raju Vaishya, Senior Consultant Orthopaedic and Joint Replacement Surgeon, Indraprastha Apollo Hospitals.

Noting that a one-size-fits-all approach may not help, the expert stressed the need for personalized treatment that recognizes the specific phenotype in each patient.

Also read: Can Running Marathons Or Ultramarathons Raise Colon Cancer Risk? Study Sparks Concern

Six Disease Subtypes Identified

The review, published in International Orthopaedics, identifies six disease subtypes, including inflammatory, metabolic, and pain-sensitization variants. Researchers recommend MRI-based tools and biomarker panels to guide treatment decisions.

Emerging technologies such as AI-assisted MRI scoring and PET-MRI with 18F-NaF may also enable earlier detection and better patient classification, although wider clinical adoption will require standardized protocols and large-scale validation studies.

Osteoarthritis Burden Rising Worldwide

More than 500 million people worldwide live with osteoarthritis, accounting for 7.6 per cent of the global population. According to Global Burden of Disease estimates, prevalence has increased by 132 per cent over the past 30 years and is projected to rise by another 60 per cent by 2050.

Women, people with obesity, and those with previous joint injuries are disproportionately affected.

What Is Osteoarthritis And Its Symptoms?

Read More: Hepatologist Recommends 9 Most Effective Exercises For Better Liver Health

Osteoarthritis occurs when the cartilage that cushions the ends of bones gradually wears down, causing joints to become stiff, painful, and less mobile.

The disease commonly affects the knees, hips, and small joints of the hands, although it can occur in almost any joint.

Common symptoms include:

  • Joint pain
  • Joint stiffness
  • Difficulty moving affected joints
  • Swelling
  • Joint tenderness
  • A grating or crackling sensation during movement
  • Pain and stiffness after periods of inactivity
  • Enlarged or knobbly joints
  • Reduced range of movement
  • Muscle weakness or muscle loss

How To Prevent Osteoarthritis

Experts say maintaining a healthy weight, staying physically active, avoiding prolonged sedentary behaviour, and preventing joint injuries can help lower the risk of osteoarthritis.

One of the biggest challenges in osteoarthritis treatment is the “care gap.” Many patients are too young or not yet severe enough for surgery but may spend years relying on medications that relieve symptoms without addressing the underlying mechanics of joint stress.

Research suggest gait retraining — adjusting the way a person walks — could help bridge this gap. Unlike medication or surgery, gait retraining is non-invasive and may offer a sustainable long-term solution.

Currently, gait retraining often requires specialized tools such as motion-capture systems and pressure-sensitive treadmills. However, newer approaches, including smartphone-based video analysis and sensor-equipped “smart shoes,” are being developed to make the technique more accessible.

Experts caution against making major changes to walking patterns without professional guidance, as improper adjustments may place additional strain on other parts of the body.

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What Is Causing A Rise In Mouth Cancer Cases Among People Under 40?

Updated Jun 4, 2026 | 04:00 PM IST

SummarySmoking, drinking alcohol, vaping, and unhealthy eating habits adopted after the pandemic are silently increasing the risk of mouth cancer in young adults.
Mouth cancer

Smoking is the most important risk factor for mouth cancer. (Photo credit: AI generated)

After the COVID-19 pandemic, a large number of young adults returned to social life with unhealthy coping habits such as smoking, vaping, alcohol consumption, late-night eating, and excessive spicy or junk food intake. These are now causing a worrisome surge in cases of mouth cancer in people below 40. Youngsters fail to pay attention to the early warning signs, such as unhealed mouth ulcers, a burning sensation, white patches, difficulty swallowing, or persistent mouth pain, leading to delayed diagnosis. Hence, it is the need of the hour to seek timely treatment, which can save lives.

What is mouth cancer?

Mouth cancer, also known as oral cancer, refers to the abnormal growth of malignant cells in the gums, lips, tongue, or the inner lining of the cheeks and floor of the mouth. Early detection of this disease can help improve survival rates. The symptoms of mouth cancer are:

  1. Sore or blister inside the mouth that lasts for two to three weeks
  2. Bleeding
  3. Numbness
  4. Lump or swelling or thickening of the mouth, lip or neck
  5. Persistent pain in the mouth
  6. Persistent white or red patches in the mouth
  7. Difficulty in swallowing or speaking

What are the risk factors for mouth cancer?

According to doctors, mouth cancer can happen to anyone. But there are some risk factors that can make you more prone to developing the tumour:

  1. Smoking
  2. Tobacco use or chewing tobacco
  3. Using betel nut or paan
  4. HPV
  5. Frequent or heavy alcohol use
  6. Excessive exposure to the sun
  7. Poor oral hygiene

For timely detection, it is important to go for regular check-ups. If any of the symptoms appear, a biopsy can help with cancer detection.

Why are mouth cancer cases rising among people in their 40s?

Dr Prathamesh Pai, Senior Consultant Head and Neck Surgical Oncologist, Gleneagles Hospital, Parel, Mumbai, said, “There is a spike in cases of mouth cancer among younger individuals aged 25–40. The causes can be smoking, vaping, alcohol intake, poor dietary habits, and spicy junk food. Many youngsters believe mouth ulcers are common and harmless, but any ulcer that does not heal within two weeks should never be ignored. Early symptoms may include mouth pain, white or red patches, bleeding, difficulty chewing, bad breath, or swelling inside the mouth. Also, there is a lack of dental hygiene, and almost no one visits the dentist on a regular basis. In a week, three out of five patients visiting our clinic come with signs of unhealed mouth ulcers, white and red patches, difficulty opening the mouth, or altered speech and swallowing, and are often diagnosed with mouth cancer.”

Tobacco in any form, including vaping, can damage the body from the oral cavity to the lungs, as well as the heart, urinary bladder, and brain. Combined with alcohol, the incidence of cancer rises threefold. Maintaining good oral hygiene, avoiding tobacco and alcohol, reducing spicy processed food intake, and undergoing regular dental or oral check-ups are key to preventing mouth cancer, and early detection can lead to a cure.

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