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.
Credit: AI generated image
There is a particular cruelty about ovarian cancer. It does not announce itself loudly. Instead, it murmurs softly with a bit of bloating here, some lower back pain there, a persistent sense that something is not quite right, but nothing dramatic enough to cause alarm. And by the time most women receive a diagnosis, the disease has often made itself very much at home.
Every year on May 8th, the world pauses to mark World Ovarian Cancer Day, an occasion that has grown since its launch in 2013 into a genuinely global movement. This year’s theme – ‘No Woman Left Behind’ – carries particular weight because the uncomfortable truth is that far too many women are being left behind by late diagnoses, by underfunded research, and by healthcare systems that have historically paid less attention to this disease than it deserves.
Roughly 250,000 women are diagnosed with ovarian cancer every year across the world. An estimated 140,000 will die from it. It is, by some measures, the deadliest of all gynecological cancers, and yet, it receives a fraction of the public attention given to breast cancer.
The comparison is worth dwelling on. Approximately 89 per cent of breast cancer patients survive beyond five years. For ovarian cancer, that figure drops to around 45 per cent – nearly half! And the primary reason for that stark difference is not that ovarian cancer is inherently untreatable but that it is rarely caught in its early stages.
When diagnosed at Stage I before the cancer has spread beyond the ovaries, survival rates climb dramatically, with some studies suggesting above 90 per cent. The problem is that only around 20 per cent of cases are caught that early. The rest are diagnosed at Stage III or Stage IV, when the cancer has already spread to the abdomen, lymph nodes, or beyond.
Ask most people to name the symptoms of ovarian cancer, and you will likely be met with a blank look. That in itself is part of the problem. Unlike the distinct lump in breast cancer cases or the irregular bleeding associated with cervical and uterine cancer, ovarian cancer does not produce one clear and recognizable sign. What it does produce are symptoms that most of us would simply dismiss – persistent bloating, feeling full quickly when eating, pelvic or lower abdominal pain, urge to urinate more frequently or urgently, unexplained fatigue, and a change in bowel habits.
Each of those individually could be attributed to several other conditions, including irritable bowel syndrome, gut infections, stress, dietary changes, and even getting older. That is precisely what makes this disease so dangerous. Women dismiss these symptoms. Sometimes doctors do too.
This is not about blame; it is about recognition. The medical community has made genuine progress in understanding ovarian cancer, but there simply aren’t any reliable early-screening tests available that are similar to mammograms for breast cancer or smear tests for cervical cancer. Hence, genuine and widespread public awareness becomes the closest thing to building a first line of defense.
The 2026 theme is not merely a slogan. It is a confrontation with the reality that a woman’s place of residence, country, or economic circumstances should not determine whether or not she lives.
In higher-income countries, access to surgery and chemotherapy, whilst still imperfect, is broadly available. Newer treatments are beginning to extend survival times for women with advanced disease. Research into biomarkers is advancing, offering hope for earlier detection in the future.
But in lower-income countries, the picture is vastly different. Women are often diagnosed later, treated less effectively, and supported less comprehensively. The global survival gap for ovarian cancer is not simply a medical problem; it is more a problem of justice.
‘No Woman Left Behind’ asks us to hold that in mind. Progress that only reaches the privileged is not progress enough.
The absence of a reliable screening test makes personal awareness all the more essential. There are several things every woman can do, not just on May 8 but throughout the year.
Since 2013, World Ovarian Cancer Day has grown into a movement that now spans more than 80 per cent of the world’s countries and is supported by over 200 organizations globally. That is an extraordinary thing. It is proof that sustained, collective attention can shift awareness, influence policy, and ultimately change outcomes.
But awareness days only work if they spark something beyond the day itself. The teal ribbons and social media posts matter, not because they are gestures, but because every gesture has the potential to reach someone who needs to hear it, someone whose bloating has been going on for two months, someone whose mother was diagnosed with breast cancer and who has never thought to ask whether their own risk might be elevated. Someone who simply did not know.
Therefore, let us spread awareness this day by realizing that equality is not in regarding different things similarly, equality is in regarding different things differently, and still leaving no one behind.
Frequent bloating is a cause of concern. (Photo credit: AI generated)
Many women do not consider persistent bloating to be a serious issue because they tend to correlate their symptoms with acidity, excessive gas, overeating, or other temporary issues caused by their digestive system. Many women tend to treat their symptoms on their own by changing their diet or taking over-the-counter medications without looking into what the underlying problem may be. Many women do this because their symptoms initially seem mild. However, it is important to pay attention to any persistent bloating, especially if the bloating occurs on a regular basis, has lasted for at least one month, or is associated with symptoms such as pelvic discomfort, loss of appetite, an increased feeling of fullness, or irregular bowel habits (diarrhoea, constipation, etc.).
In an interaction with Health and Me, Dr Parnamita Bhattacharya, Gynaecologist at CK Birla Hospitals, CMRI, spoke about the concerns surrounding persistent bloating and whether it is associated with the risk of ovarian cancer.
One of the most significant concerns surrounding persistent bloating is that women can develop ovarian cancer, especially in the early stages, without knowing or having any obvious signs that they have the disease. Because there are no routine screening tests to detect ovarian cancer in the general population, it is critical for women to be on the lookout for any symptoms of persistent bloating and report them immediately to their doctor. Unfortunately, because women often ignore their symptoms and fail to seek medical attention, by the time they do see a doctor, ovarian cancer has progressed to a later stage of development.
Not all bloating is related to ovarian cancer. Other common contributing factors to bloating include irritable bowel syndrome, food intolerance, hormonal changes, and lifestyle factors. The significant difference between "normal" bloating and "abnormal" bloating is how long each type of bloating lasts and how quickly the symptoms progress. If your bloating continues despite dietary changes, or if it increases in frequency, you should not ignore the symptoms. You should have them evaluated by a medical professional.
It is important for women to understand the signals sent by their bodies. If you frequently experience bloating, this issue needs to be investigated and not just accepted as normal. If you seek timely evaluation, doctors can determine the source of your problem early on, which greatly increases your chances of a good outcome from a serious diagnosis such as ovarian cancer.
Ovarian cancer symptoms can be vague and may develop as the disease progresses. Therefore, timely detection is a challenge. Some of the signs of ovarian cancer include:
Credit: AP
Former New York City Mayor Rudy Giuliani has been discharged from the ICU but will remain in the hospital for “some time” as he recovers from pneumonia, according to his spokesperson.
In a post on social media platform X, spokesperson Ted Goodman said Giuliani, 81, was hospitalized earlier this week in critical but stable condition.
Giuliani, who served as New York City's mayor from 1994 to 2001, was previously diagnosed with restrictive airway disease following the infamous 9/11 terrorist incident, where he “took down the mafia, saved New York City, and ran toward the towers on September 11th".
However, the incident left Giuliani with lasting health complications, Goodman said, adding that the former NYC Mayor "is recovering from pneumonia”.
“The virus quickly overwhelmed his body, requiring mechanical ventilation to maintain adequate oxygen and stabilize his condition,” Goodman said.
Calling him the "same fighter he's always been, and he's winning this fight,” Goodman said that the "mayor and his family appreciate the outpouring of love and prayers sent his way”.
Notably, Giuliani is a longtime ally of President Donald Trump. In 2025, Trump also announced awarding Giuliani with the Presidential Medal of Freedom, the country's highest civilian honor.
Pneumonia is an inflammatory condition of the lung tissue, most often caused by infections. It can affect one or both lungs and can range from mild to life-threatening, especially in vulnerable populations like the elderly, young children, or those with underlying health conditions.
There are several types of pneumonia, classified based on their causes—bacterial, viral, and fungal—and each has distinct patterns of transmission and severity.
Pneumonia is not a single disease but a syndrome resulting from various infectious agents:
Bacterial Pneumonia: This is the most common type, often developing as a secondary infection after a cold or flu. Streptococcus pneumoniae is the most frequent culprit.
Viral Pneumonia: Caused by viruses like influenza, respiratory syncytial virus (RSV), and SARS-CoV-2 (COVID-19), this type often starts in the upper respiratory tract and spreads to the lungs.
Fungal Pneumonia: This type is less common and usually affects individuals with weakened immune systems. It's typically contracted through environmental exposure, such as to soil or bird droppings.
Pneumonia can be insidious. It often begins with symptoms that mimic the flu: headache, fatigue, and fever. But as the infection progresses, signs become more serious:
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