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.
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.
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.
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:
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.
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.
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.
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.
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.
Excessive sweating and tight clothing combined can lead to skin infections. (Photo credit: AI generated)
When it comes to heatwave-like conditions, most people worry about the risk of dehydration and sunburn. But it turns out that the scorching heat could also take a toll on your skin—according to experts, extreme summer heat can increase the risk of skin infections. Heatwave-related skin infections can be triggered by high humidity, sweat, and bacteria trapped on the skin. Some of the other issues associated with heatwaves are folliculitis, heat rash, impetigo, and yeast infections.
Talking about it, Dr. Gitika Sanodia, Consultant Dermatologist at Dr. L H Hiranandani Hospital, Powai, answered some FAQs associated with heatwaves and consequent skin infections.
The expert said that when there is an increase in temperature, there is an increase in sweating, dehydration, and breakdown of the skin barrier, which creates an environment suitable for infection development, mainly in children, the elderly, diabetics, and obese individuals. Heatwaves also cause friction, which leads to skin infections. As a result, rashes can develop and cause a great deal of discomfort.
During summer, because of the heat, one ends up sweating far more than normal, and if you are someone who often wears tight clothes, it can be even worse. Overproduction of sweat keeps the skin constantly wet. Such an environment provides perfect conditions for bacteria and fungi to multiply. Being trapped under breast tissue, between the thighs, and in folds around the neck and armpits causes conditions such as yeast infections or folliculitis.
During a heatwave, some skin infections are likely to develop silently. These include:
At a time when temperatures are rising constantly, heatwave-related infections are likely to affect certain groups more than others. These high-risk groups are:
In order to prevent heatwave-related skin infections, you need not make major changes to your lifestyle or wardrobe. Rather, some simple, cost-free methods can also do the trick. Here are some expert-recommended tips to beat the heat:
With the increasing number of heatwaves, these problems have become more than just seasonal. However, with the right choices in terms of diet, lifestyle, and clothing, you may be able to avoid skin infections during a heatwave.
Create: AI generated image
Persistent back pain in young adults is often dismissed as poor posture, long hours at a desk, or muscle strain. But doctors are warning that in some cases, it could be a sign of ankylosing spondylitis — a chronic inflammatory autoimmune disease that affects the spine and can silently progress for years before diagnosis.
In India, 16.5 lakh people suffer from the condition, with an average diagnostic gap of nearly seven years from the time symptoms first appear. During that window, the disease continues to silently progress, and the burden is far from small.
“Ankylosing Spondylitis is one of the most underdiagnosed conditions we encounter in clinical practice, and the consequences of that delay are real,” Dr. Arvind Mehra, Senior Director and HOD - Orthopaedics at Paras Health Gurugram, told HealthandMe.
Moreover, “It takes several years of pain and stiffness before people seek treatment, and by then, the diagnosis comes too late, and there has already been damage to the spine,” added Dr. Ashish Tomar, Director - Orthopaedics & Minimally Invasive Spine Surgery at Sarvodaya Hospital, Faridabad.
Ankylosing spondylitis, also known as axial spondyloarthritis, is a type of arthritis that primarily targets the spine but can also affect other joints. The term “ankylosing” means stiff or rigid, “spondyl” refers to the spine, and “itis” indicates inflammation.
The inflammatory disease causes some of the bones in the spine to fuse over time. This fusing not only makes the spine less flexible but can also cause issues while breathing.
Ankylosing spondylitis leads to inflammation in the spine and large joints, causing stiffness and pain. It can also impact the joint between the spine and the hipbone, potentially resulting in additional symptoms such as digestive issues, rashes, and weight loss.
What makes ankylosing spondylitis difficult to spot is that it often feels like ordinary back pain — but there are warning signs that set it apart.
According to experts, ankylosing spondylitis-related pain typically:
This pattern is very different from mechanical back pain, which usually worsens with movement and improves with rest.
Dr. Tomar told HealthandMe that ankylosing spondylitis is not simply a musculoskeletal problem — it is an autoimmune disease, where the body’s immune system mistakenly attacks healthy tissues, particularly around the spine and joints.
“Ankylosing spondylitis is not just another musculoskeletal disease. It requires the attention given to autoimmune disorders because it may affect the chest, hips, shoulders, and even the eyes, while also causing severe posture problems in advanced stages,” he said.
Beyond the spine, the disease may affect:
Who Is At Most Risk? How To Treat?
Young adults, typically in their twenties, are more likely to experience this condition because people often overlook its existence or mistakenly identify it as something else.
The combination of early diagnosis, structured physiotherapy, and suitable medications allows for effective disease progression control.
“When a young adult presents with inflammatory back pain, especially in the gluteal area, that persists beyond three months, the reflex should not be to prescribe a painkiller and wait. It should be investigated further. That shift in approach can make an extraordinary difference to someone’s long-term quality of life,” Dr. Tomar said.
Common treatments for ankylosing spondylitis include:
Credit: AI generated image
When women are in their 40s, their bodies start to change a lot because of the hormones. This is mainly because the estrogen and progesterone levels in the body start to go down. This time is called Perimenopause.
It is when women start to move towards menopause. It can bring a lot of emotional changes. Some of these changes are normal.
After 40, women's bodies start to produce estrogen. This means they can have an imbalance.
Women's bodies need hormones like estrogen and progesterone to have periods, strong bones, a good mood, and to stay at a healthy weight. When these hormone levels change, it affects parts of the body. This change can take a year before it stops at menopause.
Common hormonal changes women experience
While some changes are normal, some symptoms need a doctor's help:
When women are over 40 and their hormones change, they are more likely to have:
Estrogen helps keep the heart and bones healthy, so when its levels go down, women are more likely to have these health problems."
Women should talk about these changes openly. If they know what is happening and see a doctor early, they can make this time easier.
Hormonal changes after 40 are a part of getting older, but women should not ignore them. Especially if the symptoms are very bad or happen all the time.
If women understand what is happening in their bodies and see a doctor when they need to, they can be healthier and more confident. If women take care of themselves now, they can have a life in the years to come.
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