Dementia: a simple guide for people using GLP-1s:

Dementia isn’t one disease. It’s a syndrome  (a pattern of symptoms) caused by different brain disorders. It involves a progressive decline in thinking, memory, communication, judgement, or visuospatial skills that eventually interferes with independent day-to-day life.

If you’re using a GLP-1 injection for weight loss, this matters because the strongest modifiable dementia risks aren’t “brain supplements” they’re the same metabolic and vascular risk factors you’re already targeting: blood pressure, glucose control, obesity/visceral fat, activity, sleep, smoking, alcohol, hearing/vision and social connection etc. The 2024 Lancet Commission estimates that around~45% of dementia cases could be delayed or reduced by addressing modifiable risks across the life course.

Dementia: signs and symptoms (simple checklist)

People often want a simple checklist, but the key is pattern + progression:

Common early symptoms include:

• Memory: repeating questions, forgetting recent events, misplacing items
• Language: word-finding pauses, difficulty following conversation
• Planning/executive function: struggling with finances, cooking steps, medication routines etc
• Visuospatial: getting lost in familiar places, driving errors
• Mood/behaviour: apathy, irritability, anxiety, depression, personality change
• Daily function: increasing difficulty with routine self-care or household tasks

 

What types of dementia are there?

In simple terms, the main categories are:

1. Alzheimer’s disease (the most common)
2. Vascular dementia (stroke/small vessel disease)
3. Dementia with Lewy bodies (fluctuations + hallucinations + REM sleep behaviour disorder)
4. Frontotemporal dementia (earlier onset; behaviour or language first)
5. Mixed dementia (more than one disease process occurring at once)

(Mixed dementia is common and often under-recognised during life)

How is dementia diagnosed ?

There isn’t a perfect test. Diagnosis is usually based on clinical: history + cognitive testing + blood tests to rule out other causes. (Possibly CT/MRI in addition)  The point being that diagnosis is based on the whole pattern, not one result.

 

Dementia risk: why GLP-1 users should care

GLP-1s can be powerful weight loss tools, but weight loss is not the same thing as metabolic health  and stopping GLP-1s often leads to rebound hunger and weight regain in the absence of a structured plan.

(This rebound pattern is exactly why the ProLongevity Essentials programme exists)

For dementia prevention, the things that matter are largely:

• Blood pressure
• Glucose stability / insulin resistance
• Visceral fat / waist
• Cardiorespiratory fitness + resistance training
• Sleep and circadian rhythm
• Smoking / alcohol
• Hearing and vision
• Social connection and depression management

That’s a perfect overlap with a well-designed GLP-1 “off-ramp” programme.

Dementia and “Type 3 diabetes”

You’ll often see Alzheimer’s called “type 3 diabetes.” That’s not an NHS diagnosis, but it reflects a real scientific theme: impaired insulin/IGF signalling and glucose-handling changes in the brain are commonly seen in Alzheimer’s.  

Takeaway: Metabolic health is brain health.

How can ProLongevity Essentials help?

Essentials isn’t a dementia treatment. It’s a structured, evidence based approach to  prevention and improved metabolic health, especially for people who’ve relied on appetite suppression and now want durable metabolic control.

1) Glucose stability (especially when tapering/coming off)

• Identify personal spike/crash triggers
• Reduce “rebound hunger” cycles
• Build a sustainable meal pattern that survives life, stress, and weekends

2) Vascular risk control

• Weight is only one marker. Dementia risk tracks strongly with blood pressure and vascular injury
• A pharmacist-led model can catch medication factors that worsen fatigue, dizziness, sleep, or cognition

3) Fitness that protects the brain

• Walking is good; resistance training + aerobic capacity is even better
• Add balance work to reduce falls/head injury risk

4) Sleep and circadian rhythm

• Routine, daylight timing, caffeine/alcohol timing, and evening “load reduction” can meaningfully improve cognition and mood in many people, regardless of diagnosis

5) Social accountability and adherence

• The science is clear: behaviour change fails without structure
• A cohort model increases follow-through.  Arguably the most undervalued “intervention” in lifestyle medicine

 

What about dementia drugs ?

Despite the hype, and £££ billions spent on research, drug options typically offer negligible benefits, they don’t restore normal cognition but the do cause side-effects. For selected people with early Alzheimer’s, newer antibody therapies may modestly slow decline, but they require careful selection and monitoring and are not cures. The best strategy remains risk reduction across vascular and metabolic health.

Call to action

If you’re on a GLP-1 (or trying to come off) and you want a plan that protects your long-term health (including your brain), ProLongevity Essentials is designed to help you stabilise appetite and lock in metabolic change so you’re not dependent on injections for life.

TL;DR

• Dementia is a syndrome, not a single disease.
• The biggest modifiable risks overlap with metabolic health: BP, glucose, visceral fat, fitness, sleep.
• If you’re using GLP-1s, the goal should be durable metabolic control, not temporary appetite suppression.
• ProLongevity Essentials targets those core levers with structure and accountability.

• Mood/behaviour: apathy, irritability, anxiety, depression, personality change
• Daily function: increasing difficulty with self-care and routine tasks

Dementia is usually multifactorial and often mixed.

The useful takeaway is simple: Metabolic health is brain health.