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.
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As measles continues to spread across the United States, with recent case numbers climbing to their highest level in 33 years, growing numbers of Americans are becoming concerned about how at risk they may be.
Health officials in Philadelphia confirmed a potential measles exposure at Philadelphia International Airport and several public transport locations across the city in early January. The Centers for Disease Control and Prevention has also flagged earlier measles outbreaks across Pennsylvania, New Jersey, and New York City.
Adding to the concern, infectious disease tracker BMJGroup reported that measles cases recorded in 2025 are the highest seen since at least 1992.
Against this backdrop, it is important to understand whether measles can be fatal and to recognise the symptoms that should not be ignored.
Yes, measles can be deadly and carries a significant risk of death, according to the Centers for Disease Control and Prevention.
“Measles can lead to serious health complications, including pneumonia, inflammation of the brain known as encephalitis, and death,” the CDC states. “Between one and three out of every 1,000 people infected with measles will die. Around one in five people with measles will require hospital care, and one in every 20 children with measles develops pneumonia, which is the leading cause of measles-related deaths in young children.
“One in every 1,000 people with measles will experience brain swelling, which can result in permanent brain damage.”
According to the Mayo Clinic, measles symptoms usually appear in three distinct stages.
Stage 1: Incubation period (10 to 14 days)
During this phase, there are typically no noticeable or warning symptoms.
Stage 2: Early symptoms begin
Symptoms at this stage may include a dry cough, fever, red and inflamed eyes known as conjunctivitis, a runny nose, and a sore throat.
Stage 3: Acute illness and rash
“In the third stage, a rash begins to develop, usually starting on the face. Small white spots called Koplik spots may appear inside the mouth two to three days after symptoms first appear,” the Mayo Clinic explains. “The measles rash typically shows up three to five days after the initial symptoms.
“Over the following days, the rash spreads to the arms, torso, and legs. Alongside the rash, fever often rises rapidly and can exceed 105 degrees Fahrenheit,” the guidance continues. “Eventually, the fever subsides, and the rash fades from the body starting at the head and moving downward.”
“If individuals aged six months or older are exposed to measles and do not have immunity from prior infection or vaccination, they can receive the measles vaccine within three days of contact with the virus,” the Mayo Clinic advises. “After vaccination, quarantine at home is not required.
“For children up to 11 months old who are exposed and are not immune, a dose of antibodies known as immune globulin can be given within six days of exposure to help the body fight the infection.”
Receiving this antibody treatment requires a 21-day quarantine period.
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A notice has been issued for people who use the drug spironolactone. It is commonly prescribed for heart conditions, high blood pressure, and fluid retention. However, doctors say the medication is also used for several other health concerns.
According to the British Association of Dermatologists (BAD), spironolactone is prescribed “off licence” for women dealing with acne, female pattern hair loss, and hirsutism, a condition marked by excessive hair growth in areas such as the chin and upper lip. The NHS also states that spironolactone is a well-established and generally safe medicine that is sometimes used off licence to treat acne. Off licence means the drug is not officially approved for that specific condition under the UK prescribing licence.
Despite this, the NHS says spironolactone is available through the health service and is considered a useful alternative to long-term antibiotics. A study published in 2022 found that the drug is effective and safe for women who have persistent acne.
Spironolactone, sold under the brand name Aldactone, is also used to help manage polycystic ovary syndrome, commonly known as PCOS. However, it is not usually prescribed to men for skin-related conditions.
While the medication can be helpful for many women, experts warn that it does come with side effects and certain dietary restrictions. Here is what patients should know before starting treatment.
The NHS explains that spironolactone does not permanently cure acne, but it can help control breakouts and gradually clear the skin. The drug works slowly, meaning results are not immediate.
Most women begin to see improvement after about three months of use, but treatment usually needs to continue for at least six months. In some cases, it may take the full six months to experience the maximum benefit.
For acne, spironolactone is usually prescribed at doses ranging from 50mg to 150mg per day. Many patients start with 50mg daily for the first month, depending on how well they tolerate the medication and whether any side effects appear.
If there are no concerning side effects and blood test results remain normal, a doctor may increase the dose to 100mg per day. NHS guidance says the tablets should be swallowed whole with water and taken after food.
High potassium levels in the blood, especially in people over 45 or those with heart or kidney disease
Changes in kidney or liver blood tests, which usually return to normal if the dose is reduced or stopped
Cancer, which has been linked to very high doses in animal studies, but not seen in people taking standard doses.
The NHS advises that spironolactone should not be taken during pregnancy or while trying to conceive. It should also be avoided by people with Addison’s disease or serious kidney problems.
Alcohol can worsen certain side effects, such as dizziness, so cutting back on drinking is recommended. Reliable contraception should be used while taking spironolactone, and the combined contraceptive pill may help reduce side effects while also improving acne.
Doctors advise that it is usually safe to try for a baby one month after stopping the medication. The NHS stresses the importance of informing your doctor about any other medicines you are taking before starting spironolactone. This includes ACE inhibitors, anti-inflammatory painkillers such as aspirin or ibuprofen, certain antibiotics, other diuretics, heart medications like digoxin, drugs for high blood pressure, and potassium supplements.
As per Mirror, people taking spironolactone are advised not to use low-sodium salt or salt substitutes such as Lo-Salt, as these products contain high levels of potassium. Using them alongside spironolactone can raise potassium levels to a dangerous range.
The NHS also recommends limiting foods and drinks high in potassium, including bananas, avocados, pulses, nuts, and salmon. A doctor or dietitian can help plan a low-potassium diet if needed.
Disclaimer:
This article is for general information only and is not a substitute for medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication, including spironolactone.
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The NHS has issued advice for anyone taking a widely prescribed medication, warning of possible “serious” side effects. If you are currently on atorvastatin, it’s important to be cautious about what other medicines or supplements you take alongside it.
Atorvastatin belongs to a class of drugs called statins, which help lower cholesterol levels. It is usually prescribed for people with high cholesterol to reduce the risk of heart disease, including heart attacks and strokes.
Your GP may also recommend atorvastatin if you have a family history of heart disease or a long-term condition such as type 1 or type 2 diabetes or rheumatoid arthritis. As with any medicine, it’s vital to follow official guidance on how to take it safely.
On its website, the NHS lists certain “cautions with other medicines.” This means you should check that atorvastatin is safe to take alongside any other drugs or supplements.
The NHS explained: “Some medicines can affect the way atorvastatin works and can increase the chances of you having serious side effects, such as muscle damage.” You should tell your doctor or pharmacist if you are taking any of the following:
If you need to take one of these medicines while on atorvastatin, your doctor may:
These are not all the drugs that can interact with atorvastatin. “For a full list, see the leaflet in your medicine packet or speak to your pharmacist,” the NHS said.
The health service also advised checking with your doctor or pharmacist before taking supplements like St John’s wort or CoQ10 while on atorvastatin.
The NHS lists these common side effects, which affect more than one in 100 people:
“Drinking large amounts of alcohol regularly increases the risk of side effects and liver problems while taking atorvastatin,” the NHS added. “If side effects make you want to stop taking the medicine, speak to your doctor first. They may be due to another cause, and your doctor can suggest lowering the dose or switching medicines.”
Stop taking atorvastatin and contact a doctor or call 111 immediately if you experience:
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