8 signs of dementia that occur in normal conversations according to medical research

Isabella Chase by Isabella Chase | June 15, 2025, 6:11 am

Distinguishing between normal forgetfulness and signs of dementia can be tricky. But did you know some signs of dementia subtly appear in everyday conversations?

According to medical research, these signs often go unnoticed because they’re wrapped up in seemingly ordinary chat. Yet, understanding them can help us better support our loved ones.

In this article, I’ll share 8 signs of dementia that occur in normal conversations, as backed by science. So let’s dive right in and illuminate these often overlooked indicators.

1) Repetition in conversation

Dementia often manifests itself in the subtleties of daily conversation. One of these signs is repetition.

According to medical research, people with dementia may repeat the same stories, questions, or statements. This is because they forget that they’ve already mentioned it, not because they’re just trying to emphasize their point.

While we all repeat ourselves occasionally, if this becomes a recurring pattern in someone’s conversation, it could be an early indicator of dementia.

So next time you notice consistent repetition in someone’s talk, don’t merely brush it off as a quirky habit. It may be an essential sign worth paying attention to. But remember – one symptom alone does not confirm dementia. It’s about recognising a pattern of changes.

2) Struggling to find the right word

Another sign of dementia that I personally encountered with my grandmother was her struggle to find the right words in a conversation.

She would often pause mid-sentence, lost in thought, trying to grasp that elusive word she wanted to use. It was as if the word was on the tip of her tongue, but she just couldn’t get it out.

Medical research supports this as a common sign of dementia. People with the condition often have difficulty finding the right words or remembering names, which can make their conversations seem disjointed or confusing.

Recognizing this symptom in my grandmother early on helped our family understand her condition and provide her with the necessary support. Always remember, though, that occasional forgetfulness is normal – it’s when it becomes a consistent pattern that we should start to take notice.

3) Difficulty following a conversation

Navigating the ebb and flow of a conversation requires mental agility, something that can be impacted by dementia. Individuals with this condition may find it challenging to follow along, losing track of what’s being discussed.

Interestingly, a study published in the Journal of Alzheimer’s Disease found that people with dementia may also struggle with understanding sarcasm and lies. This inability to discern truth from falsehood in conversations can be linked to the cognitive decline associated with dementia.

So if you notice someone regularly losing track of conversations or having trouble understanding complex dialogue, it could be an early sign of dementia. But remember, it’s essential to look for a pattern of these signs before jumping to conclusions.

4) Frequent pauses and substitutions

Another common sign of dementia that appears in normal conversations is frequent pauses and word substitutions.

People with dementia often struggle with maintaining the flow of conversation. They may pause frequently as they try to gather their thoughts or find the right words. In many cases, they may substitute a word with a less appropriate one without realizing it.

This can make their conversations seem disjointed or even a little confusing to others. It’s not just about forgetting a word or two; it’s a more significant struggle with language that makes it hard for them to express themselves.

If you notice someone having consistent difficulty with language in this way, it could be an early sign of dementia. As always, remember to look for patterns over time rather than isolated incidents.

5) Diminished attention span

One of the most heartbreaking signs of dementia that I’ve seen is a diminished attention span.

My dear friend, once an avid reader and a great conversationalist, began to lose interest mid-conversation. She would drift away, her mind seemingly somewhere else. The novels she used to love lay untouched, her attention span just not what it used to be.

Medical research confirms this as a common sign of dementia. A dwindling attention span can affect all areas of life, from conversations to hobbies.

If a loved one starts showing a consistent lack of focus, it might be more than just normal aging. It could be an early indication of dementia. Like always, it’s crucial to look for a combination of symptoms and changes over time.

6) Changes in mood or personality

I remember when my affable, easy-going uncle started to become irritable and moody. His personality seemed to shift, and he wasn’t the same person we used to know. It was a difficult time for our family, especially because we didn’t understand what was happening.

Medical research suggests such changes in mood or personality can be early signs of dementia. People with dementia might become more withdrawn or display mood swings that are out of character for them.

It’s crucial to remember that dementia doesn’t just affect memory – it can also transform the very essence of who a person is. If you notice significant changes in someone’s mood or personality, it could potentially indicate the early stages of dementia. As with all these signs, we mustn’t jump to conclusions but instead look for consistent patterns over time.

7) Difficulty with abstract thinking

Complex tasks that require abstract thinking can become challenging for people with dementia. This can show up in normal conversations when they start struggling with understanding metaphors or complex ideas.

For instance, if someone used to enjoy discussing philosophical concepts or solving mental puzzles but now finds these tasks taxing, it could be a sign of cognitive decline associated with dementia.

Remember, we all have moments when we struggle with complex ideas, or our minds feel a bit foggy. But if this becomes a consistent pattern and is accompanied by other signs on this list, it might be time to consult a medical professional.

8) Difficulty following instructions

One of the most critical signs of dementia is a growing difficulty in following simple instructions. This can manifest in conversations when they struggle to understand or remember the steps to perform a task that was once second nature to them.

This is more than just forgetting where you placed your keys. It’s about struggling with tasks that involve a sequence of actions, like making a cup of coffee or following a recipe.

Remember, early detection can significantly improve the management of dementia. Recognizing these signs in normal conversations can be a vital first step in seeking help and support.

Final thoughts: It’s about understanding, not diagnosing

The human brain is a complex and fascinating organ. Its intricate network of connections allows us to think, dream, remember, and communicate with each other. But when dementia affects these connections, it can subtly change the way someone interacts with the world.

Recognizing these 8 signs of dementia in everyday conversations is about understanding and compassion, not making a diagnosis. It’s about noticing changes in our loved ones and supporting them when they need us most.

Remember, dementia is not a normal part of aging. It’s a disease that requires medical attention. If you notice consistent patterns of these signs in someone you know, encourage them to seek professional help.

In the face of dementia, knowledge is power. The sooner we recognize the signs, the sooner we can offer support and understanding to those navigating this challenging journey. As we continue to learn more about this complex condition, let’s never forget the power of empathy and kindness in our conversations with those affected by it.