Leading psychologists have suggested President Trump may be showing signs of dementia – and that his increasingly chaotic, long-winded speeches could be a sign of logorrhoea, a condition where someone talks compulsively and struggles to stay on track.
The speculation comes after a string of recent public appearances in which the 79-year-old President has appeared to lose his thread, veer into strange digressions and muddle basic details – prompting renewed questions about his mental sharpness.
Critics say it is becoming harder to ignore what they describe as a steady build-up of ‘senior moments’ – losing the thread of conversations, drifting into wild tangents and mixing up names.
Some have gone further, suggesting the President’s apparent memory lapses, language problems, poor judgment and growing aggression could match classic early warning signs of dementia.
And one symptom critics and commentators have pointed to is logorrhoea. So just what is it?
Logorrhoea is a speech disturbance characterised by a relentless stream of talking that can become difficult to follow – not simply because someone speaks a lot, but because their thoughts derail mid-sentence, loop back on themselves or shoot off in unexpected directions.
Experts say it can show up as rambling answers that never quite land, sudden topic changes, and an inability to stop talking even when the listener is clearly trying to move things along.
Speech therapists also say people with logorrhoea can dominate conversations, talking over others or failing to register cues that someone else wants to speak.
Experts speculate that Trump is showing classic signs of logorrhoea, which could be a symptom of cognitive decline
The condition has been linked to a number of underlying issues, including dementia and other forms of cognitive impairment – and it can also appear in psychiatric conditions such as mania, a high-energy mood state associated with bipolar disorder.
Supporters insist the President is simply being himself – and point out that no doctor who has examined him has diagnosed a cognitive disorder.
Trump insists he is in ‘perfect health’, which he attributes to ‘good genetics’, and he has repeatedly boasted of ‘acing’ a cognitive test – though critics note the exam includes basic tasks such as drawing a clock, identifying animals and recalling a short list of words.
Doctors also stress that verbose speeches alone are not proof of dementia.
But they say when someone’s behaviour changes noticeably – particularly if speech becomes more chaotic, attention wanders more easily and memory appears to slip – it can raise legitimate concern.
A diagnosis of logorrhoea would typically involve assessment by a speech and language therapist or mental health professional, with clinicians considering both communication patterns and overall cognitive function.
In some cases, doctors may carry out brain imaging or other tests to investigate possible neurological causes, depending on the wider symptoms and medical history.
Treatment for logorrhoea focuses on addressing both the symptom itself and any underlying trigger.
This can include speech therapy and psychological support such as cognitive behavioural therapy (CBT), as well as medication in cases where excessive speech is driven by conditions such as bipolar disorder or schizophrenia.
However, there is currently no cure for dementia – which can worsen language problems as it progresses.
Trump has previously spoken about undergoing a CT scan, with his doctor Navy Capt Sean Barbabella confirming the purpose was to ‘definitively rule out any cardiovascular issues,’ and that the testing revealed no abnormalities.
The President has also suffered from chronic venous insufficiency – a common condition in older people in which faulty valves cause blood to pool in the legs.
He reportedly takes aspirin, which has blood-thinning properties, to help manage the condition.
High blood pressure, another risk factor for vascular problems, has also been linked to an increased risk of dementia in older age.
While speculation about Trump’s mental fitness continues to swirl, clinicians stress that dementia can only be diagnosed through proper medical assessment – not political commentary or viral clips.
Around 900,000 people in the UK are currently living with dementia, and that number is expected to rise to 1.4 million by 2040, driven largely by Alzheimer’s disease.
Memory problems, confusion, difficulties with thinking and reasoning and language issues can all be early symptoms, before worsening over time.
More than 68,000 people died from dementia in 2025, accounting for around one in six deaths from leading causes recorded.
It marks a decade since dementia overtook heart disease as the UK’s biggest killer – a grim title it has held ever since, apart from during the Covid pandemic.
