Man diagnosed with Alzheimer's aged 41 explained symptom he noticed during the night

A 41-year-old who was diagnosed with early onset Alzheimer's has revealed that he noticed a 'change' in his behaviour during the night.

Fraser, who hails from Australia, has offered people an insight into what it is like to live with the brain disorder by sharing content on YouTube on his channel @YoungerOnsetDementia.

Since the start of this year, he's accumulated more than 13,000 subscribers on the social media platform thanks to the informative videos he has been posting.

Fraser has answered countless questions, given people who might be in the same boat some stellar advice and revealed all the subtle signs he noticed before he got his diagnosis.

He's even gone as far as to share real-life footage of him experiencing one prominent symptom of his onset Alzheimer's with his audience.

But inevitably, his curious subscribers still have more stuff to ask - so he has just dropped another Q&A.

Fraser revealed his sleep has suffered due to his early onset Alzheimer's (YouTube/@YoungerOnsetDementia)

In a video uploaded on Thursday (3 April), Fraser warned that some people might find his answers 'difficult to hear', as people had asked a lot of hard-hitting questions.

As well as responding to some personal inquiries about how he intends to navigate his early onset Alzheimer's, the dad delved further into some of the symptoms which he experienced.

For those who don't know, Alzheimer’s disease - which is the most common cause of dementia in the UK - is a progressive condition.

This means that the symptoms gradually develop over years and eventually become more severe.

It causes sufferers to experience memory loss as well as a decline in their cognitive abilities, according to the Alzheimer’s Association.

In one of his videos, Fraser recalled how his symptoms began up to two and a half years before he was diagnosed with early onset Alzheimer's.

The dad said he wouldn't mind donating his brain to medical science (Getty Stock Image)

And in his latest clip, the content creator detailed how one particular symptom began effecting him during the night when he was sleeping.

He explained although he had not noticed 'any change' in his dreams, the quality of his slumber 'went downhill a bit' when he was suffering with his mental health.

Since he's been feeling better, this issue has 'sort of improved', but he explained that some aspects still haven't quite rectified themselves.

Fraser explained: "I tend to get my full night's sleep in again. I do wake up sometimes throughout the night though, a bit more than I probably used to.

"But I can still fall asleep all right. What I have noticed though, is that I sleep now during the day.

"I have to sleep during the day now, because I just feel exhausted."

He also touched on what he went through before he got his diagnosis, as he revealed the 'earliest symptom' he had was lapses in his memory.

"You sort of just forget stuff," Fraser said. "But for me, I felt like I forgot things that were like, 'Oh, that's a pretty big memory stuff up'."

Elsewhere in the video, the Aussie revealed that he is 'an organ donor' and has got 'no issue' with the idea of donating his brain to medical science.