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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Why Women Want Hormonal Health Care, Not Just Pregnancy Care

Updated Jul 18, 2026 | 03:00 PM IST

SummaryHormonal health affects every stage of a woman’s life. Early awareness, healthy habits, and timely medical care can improve overall well-being and quality of life.
Why Women Want Hormonal Health Care, Not Just Pregnancy Care

Credit: AI

Women’s health is particularly discussed in the context of pregnancy and childbirth, but even hormonal health deserves attention at every stage of life. From puberty to menopause, hormones influence physical, emotional, and reproductive well-being. This article highlights the importance of paying attention to the hormonal health of women.

Women today are experiencing hormonal imbalance. While maternity care remains important, many women are looking for support in managing hormonal issues that affect their daily lives, careers, relationships, and even long-term well-being.

How Hormonal Imbalance Affects Overall Well-Being

Did you know? Hormones play a crucial role in regulating menstrual cycles, mood, sleep, energy levels, metabolism, skin health, bone strength, and fertility. So, understand that when hormones become imbalanced, women can experience various signs and symptoms such as irregular menses, severe menstrual pain, acne, weight gain, hair loss, fatigue, mood swings, sleep disturbances, and difficulty conceiving.

Moreover, various conditions such as Polyendocrine Metabolic Ovarian Syndrome (PMOS), thyroid disorders, endometriosis, and perimenopause-related hormonal changes can affect quality of life.

For many years, women sought medical attention only during pregnancy or when trying to conceive. However, now, women in their twenties, thirties, and forties are seeking guidance for even menstrual health, hormonal disorders, stress-related symptoms, and preventive care.

Women now want answers to symptoms that were previously dismissed as "normal" or simply part of being female. Regular health check-ups, timely evaluation of menstrual irregularities, and management of conditions such as PMOS and thyroid disorders can help women improve their quality of life. Hormonal well-being also plays an important role in maintaining heart health, bone density, metabolic health, and mental wellness.

Also read: Postpartum Breast Cancer May Be Biologically More Aggressive; Here’s Why

Signs Women Should Never Ignore

Many women are no longer willing to dismiss symptoms as a "normal part of being a woman." Heavy periods, severe menstrual pain, persistent fatigue, unexplained weight gain, and ongoing mood disturbances should not be ignored and may require medical evaluation.

Tips to Support Better Hormonal Health

Vital tips for improving hormonal health in women: It will be necessary for women to have a well-balanced diet rich in fruits, vegetables, whole grains, and protein. Exercise daily and support metabolism and hormone balance. Aim for 7–8 hours of quality sleep every night. Stay stress-free by doing yoga, meditation, or relaxation techniques. Women should quit smoking, alcohol, and illicit drug use, and not ignore irregular periods, severe menstrual pain, or unexplained weight changes. It is also necessary for women to schedule timely gynecological and health check-ups.

Hormonal health influences every stage of a woman's life, affecting both physical and emotional well-being. Hence, women must ensure timely check-ups not only during pregnancy or menopause but also at every stage of life. Women should prioritize hormonal health not only during pregnancy or menopause but throughout their lives. Early awareness, timely evaluation, and preventive care can go a long way in improving long-term health and quality of life. Don’t wait anymore and seek timely help. So, women, get going now!

By Dr. Pavana H.N. Consultant - Obstetrician & Gynaecologist, Motherhood Hospitals, Sector 48, Noida

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The Rise of Robotic Joint Replacement: How Technology Is Transforming Orthopaedic Surgery

Updated Jul 18, 2026 | 01:00 PM IST

SummaryOrthopaedic surgery is undergoing a transformation with the advent of robotic joint replacement. Robotic Joint Replacement is revolutionizing orthopaedics with cutting-edge features.
The Rise of Robotic Joint Replacement: How Technology Is Transforming Orthopaedic Surgery

Credit: AI

Joint replacement surgery was one of the most successful surgeries in modern medicine, allowing millions of people to enjoy the benefits of mobility and pain relief despite the debilitating effects of advanced arthritis and joint damage.

The use of robotic-assisted technology is ushering in a new era in orthopaedic surgery today. Robots are not taking the place of surgeons, but they are helping to improve accuracy in surgery, to aid in planning, and to help provide more personal care.

Robotic Surgery Supports, Not Replaces, the Surgeon

As an orthopaedic surgeon, I see patients all the time who think that the surgery is done by itself, the robot. In fact, this is a procedure that is performed by the surgeon and the robot.

The robot serves as an advanced surgical assistant, giving the surgeon real-time guidance and very accurate measurements, but all key decisions and surgical steps are still left up to the surgeon.

Precision Drives Better Joint Replacement Outcomes

Also read: Your Joints Are Working Overtime. Are You Helping Them or Hurting Them?

Precision is the biggest benefit of robotic joint replacement. Each patient's anatomy is different and subtle differences in bone alignment, ligament balance and implant placement can affect the long-term success of a joint replacement. Robotic systems utilize detailed imaging and computer mapping to develop a plan for a surgery that is unique to the patient before or during the surgery. This will help to maintain a more accurate placement of the implant so that the joint can be more accurately recreated and moved as it is designed to move.

This accuracy can mean a clinically significant benefit. Correct positioning of the implant can minimize the need for excessive bone removal, enhance joint stability, balance the soft tissues, and possibly increase the duration of the implant's life. Many patients also find that they recover more easily, experience less post-operative pain, and are more confident in getting back to everyday life, but results vary depending on many factors such as overall health, rehabilitation and the severity of the joint disease.

Robotic technology is increasingly being applied in knee and hip replacement surgeries, especially for those suffering from osteoarthritis. Robotic assistance is a major advantage in knee replacement surgery due to the critical role accurate positioning plays in ensuring the function and satisfaction of the implant. Robotic systems offer continuous feedback, allowing surgeons to make accurate adjustments during the procedure, which would be difficult without them.

Who Is the Right Candidate for Robotic Joint Replacement?

But keep in mind that not all patients require robotic surgery. While the use of acetals and PEKK has become more common in recent years, conventional joint replacement is still an excellent treatment, having been used for decades with great success. There are a number of factors which influence the choice of robot assistance, such as patient anatomy, case complexity, surgeon experience and availability of suitable technology. However, just because there is a robot does not automatically equate to a successful outcome; the skill and experience of the surgeon operating the robot still plays the primary role in the success of surgery.

Another false belief is that robotic surgery has no risks. As with all surgery, there are risks associated with joint replacement which include infection, blood clots, stiffness, loosening of the implant or revision surgery. Robotic technology aids in a more accurate surgery, however, it cannot eliminate all complications. It's still crucial to carefully select the right patient, to perform a careful surgery and to provide full rehabilitation after the surgery.

The Future of Personalized Orthopaedic Surgery

Also read: Osteoporosis Affects Nearly 20% Of US Women Aged 50+: Why Screening Is Key

The advancement toward personalized medicine is one of the most thrilling developments in robotic-assisted surgery. With the advent of modern technology, the surgeon is able to use more than a basic one size fits most implant and surgery planning to fit the individual patient's anatomy and functional requirements. This individualised treatment is designed to improve patient comfort, return the joint to a more normal movement and maximise the long term function.

The recovery from a robotic joint replacement is comparable to that of traditional surgery, but some patients may experience faster recovery from the surgery because the surgery has been conducted with greater precision on the soft tissue. Early mobilization, proper physiotherapy, pain management and following the proper rehabilitation protocols are all important, regardless of the use of robots or not. Surgery is just the start of the healing process.

Robotic technology is also revolutionizing the surgeon's education and training. Real-time data and guidance, coupled with advanced navigation systems, improve decision-making and consistency in implant placement during surgery. With the ongoing advancement of AI and machine learning, future robotic platforms can enhance surgical planning even more by forecasting patient-specific outcomes and supporting complex clinical decisions.

While these are great strides, technology should never replace the human element in medicine. While the latest in cutting-edge equipment is essential for a successful joint replacement, the experience of the surgeon, clinical judgment, communication and patient-surgeon relationship are all vital to the success of the procedure. Each treatment plan is a custom one that is based on both the technology and realistic expectations along with evidence-based care.

The patient should be knowledgeable about the surgery options, results to be expected, benefits to be accrued, and possible risks involved in the surgery. While robotic surgery is an important advancement in orthopaedics, it is just one part of a patient's care plan and is not a substitute for surgical skill.

Orthopaedic surgery is definitely going to be a more technologic future. Robotic assisted joint replacement is a major advancement toward more precise, personalized, and patient-centered surgery. Research is ongoing and technology is becoming more available to be used to help manage degenerative joint disease, and this role is likely to increase over time. Finally, the mission continues to be the same: to get patients moving, to alleviate pain, and to restore an active and independent life with confidence.

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John Cena Blames 'Eye Mites,' Not Age, For His Blurry Vision

Updated Jul 17, 2026 | 09:00 PM IST

SummaryDemodex mites are tiny, eight-legged organisms that live naturally on human skin, particularly around hair follicles. Measuring just 0.15 to 0.4 millimetres, they are invisible to the naked eye but are present on the skin of almost every adult.
John Cena Blames 'Eye Mites,' Not Age, For His Blurry Vision

Credit: X.com

When John Cena started noticing blurry vision, he assumed it was simply part of getting older. But the worsening eyesight was also accompanied by redness, itchiness and crusting around his eyes.

“I had a lot of redness and itchiness, and every once in a while, waking up with eye crusties and stuff. At the same time, given my age — I'm 49 now — my vision was going a little bit, so I just figured it was par for the course. But because my vision was going, I needed to see if I needed glasses or prescriptions.”

Until then, Cena had delayed getting his eyes checked. He believed that the symptoms were caused by bright lights, excessive screen time or ageing.

However, an eye examination gave him a surprise. Cena learned that his symptoms were caused by Demodex blepharitis, a condition he says he had never heard of.

“Diagnosed with Demodex blepharitis, which I didn't even know existed.”

What Are Demodex Mites?

Also read: Study Decodes Why COVID Survivors Continue To Suffer Vision Problems

Demodex mites are tiny, eight-legged organisms that live naturally on human skin, particularly around hair follicles. Measuring just 0.15 to 0.4 millimeters, they are invisible to the naked eye but are present on the skin of almost every adult.

These microscopic mites feed on sebum (the skin's natural oil) and dead skin cells, helping remove accumulated debris under normal conditions.

How Do Demodex Mites Work?

Demodex mites are most active at night. They emerge from hair follicles after sunset because ultraviolet (UV) light is harmful to them. While people sleep, the mites feed, crawl and reproduce on the skin's surface.

They are also believed to be stimulated by melatonin, the hormone that helps regulate sleep, creating a unique relationship between humans and these naturally occurring organisms.

When Can Demodex Mites Become A Problem?

Although harmless in small numbers, Demodex mites can cause problems if they multiply excessively—a condition known as demodicosis.

According to Dr. Richard Locksley, professor of medicine at the University of California, San Francisco, an overgrowth of Demodex mites can contribute to:

  • Rosacea
  • Blepharitis (eyelid inflammation)
  • Acne-like breakouts
  • Itchy, inflamed skin

Read More: Wegovy More Likely To Cause Rare Blindness Than Ozempic And Other Similar Drugs, Recent Study Finds

People with weakened immune systems are particularly vulnerable because their bodies may be less able to control mite populations. In addition, inadequate sleep may increase oil production, providing more nourishment for the mites.

Should You Be Worried?

For most healthy people, Demodex mites are a normal part of the skin microbiome and are not considered harmful. Problems generally arise only when their numbers increase significantly.

To help reduce the risk of overgrowth:

  • Wash your face every night with a gentle, non-comedogenic cleanser to remove excess oil and debris.
  • Remove eye makeup and false eyelashes before bed, as these can encourage mite buildup.
  • Get adequate sleep, since poor sleep may increase sebum production.
  • Consult a dermatologist if you experience persistent redness, itching or inflammation around the eyes or skin.

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