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.

For some women with endometriosis, getting a diagnosis is only the beginning of a long struggle to access treatment and navigate management.

In Canada, long waitlists for specialist appointments are pushing patients to consider expensive surgery abroad, highlighting how delays in care can prolong pain and disrupt everyday life.

Noelle Menu, 37, from Calgary, said her symptoms intensified after she stopped taking birth control while trying to conceive at 26.

Years of pain, emergency room visits, surgery and delays in specialist care eventually led her and her husband to seek private treatment in Tijuana, Mexico.

After being told that waiting several years to see a specialist in Canada was possible, Menu said: “We can’t deal with it in Canada.”

The couple used their savings and went into debt to pay for treatment at EndoGlobal in Mexico. The total cost was approximately $35,000, including travel, accommodation and other expenses, according to CBC News.

Her experience highlights the delay in addressing endometriosis that can intensify debilitating symptoms.

What Is Endometriosis And Why Can It Be Difficult To Diagnose?

Endometriosis is a chronic condition in which tissue similar to the lining of the uterus grows outside it, potentially affecting the ovaries, bowel, bladder and other areas. The resulting inflammation and scar tissue can cause severe menstrual cramps, persistent pelvic pain, painful sex, bowel or urinary symptoms and difficulties conceiving.

The World Health Organization estimates that endometriosis affects around 10% of reproductive-age women worldwide, or approximately 190 million people.

Diagnosis can be challenging because symptoms vary and may overlap with other conditions. There is no single definitive test that identifies every case. Doctors may use a detailed medical history, pelvic examination, ultrasound or MRI, with surgery sometimes needed to investigate or treat suspected disease.

The WHO estimates that diagnosis commonly takes between four and 12 years, leaving many patients managing symptoms without a clear explanation for prolonged periods.

Also read: Endometriosis: Repurposed Anti-Parasite Drug Shows Promise In Mouse Study

How Do Delays Affect Patients?

For patients with severe disease, waiting for specialist care can mean continuing to live with pain that interferes with work, relationships, sleep and fertility plans.

Another Canadian patient, identified in CBC's report as Papiernik, described discovering that endometriosis had infiltrated her colon after a colonoscopy detected a mass. She was referred for specialist care but faced further waits for an appointment and surgery.

“Living like this for two years was just not an option for me,” she said.

Canada's House of Commons health committee has identified gaps in endometriosis care, while the condition's economic impact includes lost productivity and healthcare costs. The issue is not simply whether treatment exists, but whether patients can access appropriate care before symptoms and complications become harder to manage.

Also read: Urine & Vaginal Samples May Help Detect Womb Cancer: Lancet Study Suggests Less Invasive Way To Triage Patients

Does Surgery Cure Endometriosis?

Surgery can remove endometriosis lesions, adhesions and scar tissue, reducing pain and treating complications. However, it is not a guaranteed cure. Symptoms may persist or return, and treatment decisions depend on disease severity, the organs involved, fertility goals and previous treatment.

Hormonal medicines and pain management can also help control symptoms. Some patients benefit from a combination of medical treatment, surgery and ongoing follow-up.

Travelling abroad may offer faster access to specialist treatment, but it comes with financial costs and other challenges. Patients should consider the surgeon's experience, the facility's standards, the possibility of complications and arrangements for follow-up after returning home.

A routine heart scan helped doctors detect pancreatic cancer in a 72-year-old US woman before it was too late. Vicky Titcomb, a Cape Cod bookstore owner and great-grandmother, underwent the scan at Mass General Brigham in March 2025, before traveling to New York City to visit her son.

Although she felt healthy, the scan revealed an abnormality on her pancreas. Further testing confirmed pancreatic cancer, one of the deadliest forms of cancer, CBS News reported.

“I felt like my life just switched in that moment,” Titcomb said. “It was a very weird feeling.”

Titcomb had undergone treatment for breast cancer in 2012.

In 2025, she was diagnosed with stage 1 breast cancer as well as pancreatic cancer. Doctors also found a mass on her ovary, which proved benign after the ovary was removed.

Why Early Detection Matters In Pancreatic Cancer

Pancreatic cancer is often diagnosed after it has spread to other organs. Its five-year overall survival rate is 13%.

The American Association for Cancer Research noted in its 2026 Cancer Progress Report that pancreatic cancer survival rates have shown little improvement despite advances in cancer care.

Doctors at Mass General Brigham planned chemotherapy and radiation to shrink Titcomb’s pancreatic tumor before surgery.

“I was told the size of the (pancreatic) cancer was about the size of a grape. The goal, to me, was trying to make this cancer a raisin,” she said. “That's the way I visualized it.”

The plan was to perform a Whipple procedure, a complex operation that removes the head of the pancreas, part of the small intestine, the gallbladder and the bile duct. Only about one in five pancreatic cancer patients is eligible for this surgery.

Titcomb’s early diagnosis made the operation possible.

“If I had not had that scan when I did, the outcome would have been bad,” she said.

Chemotherapy, Radiation And Surgery

Titcomb began chemotherapy in June 2025, receiving eight doses over four months. She then underwent three weeks of radiation and additional chemotherapy.

Surgical oncologist Dr. Thomas Clancy said she tolerated the treatment “very well.” The therapy shrank the pancreatic tumor enough for surgery.

On November 4, Titcomb underwent surgery to treat her breast cancer. Just over two weeks later, Clancy performed a robotic Whipple procedure to remove the affected part of her pancreas and other structures.

The operation was successful, and Titcomb said she was walking that night. She returned home after several days in the hospital.

Although she was recovering well, Clancy recommended two more months of chemotherapy because pancreatic cancer can be aggressive.

“There was a lot going on,” Titcomb said. “I just tried to cope with the day-to-day.”

No Evidence Of Cancer After Treatment

In March 2026, after further treatment, Clancy told Titcomb she had no evidence of cancer. She will continue to undergo scans every three months.

“She’s living her life. I generally tell patients at this point, ‘You’re done with therapy ... you go about your days,’” Clancy said. “The goal is to not be thinking about it all the time.”

Titcomb is returning to running her bookstore, which family members helped manage during her treatment. She is also spending time with her children, grandchildren and great-grandchildren, keeping in touch with those who live far away through photos, videos and phone calls.

Arthritis can affect people at different stages of life, limiting their ability to walk, climb stairs or carry out everyday activities with ease. While treatment largely depends on the extent of joint damage and the patient's condition, treatment approaches ranging from joint-preserving surgery to knee and hip replacement can help restore mobility. Rehabilitation still remains an essential part of recovery.

On World Arthritis Day, doctors explain how arthritis is treated and managed at different ages using real-life cases and highlighting how they assess joint damage, choose strategies and use physiotherapy to help patients return to their routines.

Knee Preservation Before Replacement

A 42-year-old man with grade 3 osteoarthritis in his right knee had been experiencing pain and locking. His symptoms began after a knee injury six years earlier and worsened with time. X-rays revealed marked varus alignment, cartilage and meniscus damage. Earlier consultations had suggested knee replacement, but given his age, doctors opted for knee preservation surgery.

Dr. Tapish Ravindra Shukla, Consultant Orthopaedics and Sports Medicine, Fortis Escorts Hospital, Amritsar, told HealthandMe that he performed three procedures in a single sitting: high tibial osteotomy to correct alignment and shift weight away from the damaged inner compartment, bone marrow aspirate concentrate (BMAC) to treat the cartilage defect, and meniscus repair.

The patient walked with a walker for approximately three weeks, began jogging at six weeks and was running by three months.

The case brings us to an important point, i.e., assessing whether a damaged joint can be preserved, especially in younger patients who may otherwise face joint replacement early in life.

Also read: Arthritis Day: Stanford Researchers Explore Possibility To Treat Osteoarthritis Without Knee Replacement Surgery

When Hip Replacement Becomes Necessary?

In another case, a patient developed pain in both hips after recovering from a major head injury. During prolonged rehabilitation, he had received steroids and anti-epileptic medication for an extended period. He was subsequently diagnosed with bilateral avascular necrosis, a condition in which compromised blood supply damages bone and can lead to joint destruction.

Initially, doctors performed core decompression to relieve pressure within the affected bone and attempt to preserve the joints. The patient experienced relief and continued his routine activities for nearly two years.

However, following a minor slip and fall, the pain returned. Further evaluation and X-rays showed significant progression of arthritis, prompting a recommendation for total hip replacement.

Dr. P Keerthivasan, Senior Consultant and Spine Surgeon, Kauvery Hospital, Alwarpet, Chennai, explained to us the importance of understanding the condition, accepting when treatment needs to change and planning for recovery. Following hip replacement, the patient began mobilising the next day and progressed well during the immediate recovery period.

The case illustrates that joint-preserving procedures may provide relief in selected patients, but progressive joint damage can make replacement necessary.

Also read: Joint Pain In Your 30s And 40s: When Should You Worry?

Knee Replacement To Improve Quality Of Life

A 65-year-old woman with osteoarthritis in both knees had severe pain and difficulty walking, climbing stairs and performing daily activities. She had become dependent on painkillers, raising concerns about potential kidney damage with prolonged use. Doctors recommended total knee replacement.

Dr. Rishabh Tiwari, Consultant (JR), Orthopaedics, and Dr. Vivek Allahbadia, Consultant, Orthopaedic Surgery, P.D. Hinduja Hospital & Medical Research Centre, Khar, treated the patient using a minimally invasive technique in which the tendon was lifted rather than cut. The posterior cruciate ligament (PCL) was also preserved.

According to the doctors, these approaches can help reduce postoperative pain, limit bone loss and provide a more natural feel to the replaced knee.

The patient could lift her leg on the night of surgery. The following day, she was walking with full weight-bearing, bending and straightening her knee, and using the washroom independently. Training to climb stairs began on the second day, and she was discharged that day.

At one-and-a-half months, she could perform daily activities without pain and travel independently to nearby friends and relatives. The case stresses upon how surgical technique and early mobilisation can contribute to a patient's return to everyday activities.

In another case of knee replacement, a 62-year-old woman with severe osteoarthritis in both knees had spent nearly four years avoiding stairs, temples and long walks with her grandchildren. Pain, stiffness and fear of falling had increasingly restricted her activities. “She stopped joining family outings because I couldn’t keep up,” she told her doctor.

Dr. Bhushan Shitole, Consultant Orthopaedic Surgeon and Director at Vencer Hospital, told us that he recommended robotic-assisted total knee replacement using an imageless robotic system. The technology creates a three-dimensional plan of the joint before surgery and helps the surgeon plan implant positioning according to the patient's anatomy.

“Robotic planning lets us match the implant to the patient’s unique anatomy so the first steps after surgery are already better aligned,” Dr. Shitole said. “That first confident walk is often the real turning point.”

Following surgery, the patient began walking with minimal support within days. Structured physiotherapy focused on strength, balance and gait training. By the end of the first month, she was moving independently at home. Three months later, she boarded a cruise she had postponed.

“The robot didn’t just replace my knee. It gave her back the confidence to live the life she wanted,” Dr. Shitole said.

The case highlights that recovery involves more than replacing the damaged joint. Regaining balance, strength and confidence is also central to returning to normal activities.

Severe Arthritis In Children

Arthritis and joint destruction are not restricted to older adults. A 15-year-old boy with Morquio syndrome, a rare genetic disorder affecting skeletal development, developed severe arthritis in both hips. Pain and complex hip deformities made walking and everyday activities difficult.

Because of his small skeletal anatomy and the complexity of the deformities, doctors opted for staged bilateral hip replacements. The surgical team used CT scans to create a three-dimensional printed model of the pelvis and specialised R.I Hip software to simulate the procedures virtually. This helped them select correct sized implants, plan positioning and anticipate physiological challenges.

The two hip replacements were performed three days apart. The boy was able to stand and walk with support the day after each procedure.

The treating doctor, Dr. Vaibhav Bagaria, Director, Orthopaedics- Sir HN Reliance Foundation Hospital, Mumbai, told us that rehabilitation played a huge role.

“A successful joint replacement restores the mechanics of movement, but rehabilitation helps restore the confidence to move. Both are equally important for meaningful recovery, ” he said.

Physiotherapy focused on progressive walking, muscle strengthening, balance and functional independence, with the programme tailored to the boy's underlying skeletal condition.

The case also highlights the additional considerations involved in treating young patients, including implant longevity and the possibility of revision surgery in the future.

Across these cases, treatment ranged from procedures intended to preserve a joint to partial or total replacement of severely damaged joints. The choice depended on the patient's age, the extent of joint destruction, associated conditions and the likelihood of preserving function.

Rehabilitation was central to each case. Early mobilisation helped patients use their joints after surgery, while physiotherapy helped with strength, balance, walking and daily independence.