Current research shows that there is a possible link between the loss of the sense of smell and death perhaps within five years. http://www.theguardian.com/science/neurophilosophy/2014/oct/01/your-nose-knows-death-is-imminent The theory is that when the brain is no longer able to process smells that it is possible that death can occur within five years. There is no single cause of death found in the link. The diminishing sense of smell is something that is one of the many symptoms in dementia.
I first remember a problem with my sense of smell was when I was about 14 years old.
I was home ill from school and was on the sofa, it was a wet day and my mother had draped some washing to dry on the large square fireguard surrounding the hearth. On it was my older sisters new twin-set that my mother had bought her to wear in her first job. My mother came into the room and started shouting at me, ‘couldn’t I smell the scorching?’; actually no I couldn’t. The light grey twin-set now had yellow scorch marks over the sides facing the fire.
From then on I noticed my faulty sense of smell: a lack of smell for some things, not being able to identify some, and over sensitivity for others.
When I was 18 a factory next door to where I was working had a problem with chemicals they were using and the smell of it was making me vomit throughout the day. I was the only one who had this reaction to the smell and investigations by the Public Health Inspector (who happened to be my father!) concluded that Napthalene was the chemical and that their chimney needed to be raised.
Then at one workplace in my 40/50’s the perfume ‘Vanilla’ worn by a work colleague, (which one I don’t know but it is one of the more expensive fragrances), would make my nose bleed. When women lust after the current ‘must have’ perfume to wear, I just sniff and grimace wondering why they all smell badly of soap, or compost heaps! The brain is instrumental in interpreting what the olfactory organ presents it, and it appears that mine has always been a bit ‘damaged’ in some way.
The smell of food; bacon frying, pizza, roast chicken, fresh strawberries or whatever our personal favourites are all have an effect on our brain when we smell them. You smell something wonderful like freshly baked bread and coffee and your brain processes that with perhaps memories, ideas and hunger. You can imagine the taste, the satiated feelings of being fed, but for me smells of food did not appear to trigger anything, especially not hunger. I can honestly say that from a very young age I have never felt hungry. Food was not something I enjoyed, eating was something that you had to do each day. I remember as a child never wanting to eat, crying as I sat at the large square dark oak dining table with thick barley twist legs that I loved polishing as I sat underneath. I was not allowed to get down unless I ate something and so I sat seemingly alone for hours, crying not wanting to eat the black cabbage that had been cooked in the pressure cooker for 20 minutes until it was bitter. As a baby I would not eat and no-one knew why; this I was told by my mother who said it accusingly as if I was wilfully starving myself to make her life a misery.
So now I read about Alzheimer’s and how it affects the brain, I read about different symptoms that show a cognitive decline consistent with the disease. It is hard not to try and fit your own ‘disabilities’ into the pattern that combines towards early Alzheimer’s and as I look back at these anomalies and hear other people living with dementia talk about when they first noticed these ‘symptoms’ as they have got older, I am transported back to childhood to a time when my mother was hitting me round the head with daily regularity (a clip round the ear is often spoken of in jest nowadays).
One of the first things I noticed when I started to take Rivastigmene as prescribed for me for my Alzheimer’s, was how my sense of smell appeared to be awakened. I could walk past cafe and the smell of food made me feel ‘hungry’. Now Iunderstood what others experience with the aroma of food, however eating the food does not stop the ‘hungry’ experience so that I am not satiated when I eat. What I now experience is the smell of food triggering a notion of enjoyment of eating, and a connection between enjoying the smell and the taste.
All I need now is another trigger to let me know that my desire for the taste of something has been satisfied after a few mouthfuls!
It seems the more we learn the less we know……
5 thoughts on “Dementia, Sense of Smell and Current Research”
You have been nominated for the Oh So Lovely Blog Award! Your mission, should you choose to accept it, is to go here http://felicityjohns.wordpress.com/2014/10/07/353/ and do this stuff. 😉 Congratulations!
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Thank you Felicity, I am honoured 🙂
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You’re very welcome 🙂
Very interesting post…thanks for outlining this mystery, especially with your own experiences.
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Every time I read something new Diane about very early signs of Alzheimer’s I raise an eyebrow and sigh! Another symptom I had as a child!! Sadly, it changes nothing.