31–40 of 60 posts
I was wondering lately why noise-cancelling technology is not used inside residential-buildings? Is there such a big difference between making this technology work inside my Bose-headphones vs an apartment? Street-noise seems pretty predictable and steady from afar. edit: bad bad grammar
Hum. I live maybe 3000 feet from very busy road. Luckily there is forest between my home and the road. From the article it would seem that my "risk factor" is nil. At 63 I am starting to think more about dementia risk factors.
I wouldnt worry too much. My grandfather has dementia symptoms and he's 90. You could have another 30 years. One advice after watching him is to never quit your hobbies until you abosolutely have to. His mental decline was sharp after giving up hobbies he had for 40 years.
I work still and will continue to work till at least 67.
I'm a developer and development manager so I get to challenge my brain routinely at work. I consume nuts, lots of and a variety of tea, a little chocolate and some red wine to help with polyphenols [1]. Oh and Omega 3 fatty acid sources. I am actively getting my weight under control.
I play puzzles, board games and other things to stimulate my brain.
[1] https://www.researchgate.net/publication/308945733_Nutrition...
There is a correlation between living near busy (noisy) roads and sleep deprivation and also between sleep deprivation and dementia. Seems like a possible mechanism that didn't appear to be explored.
My initial thought follows this line. Even if a subject doesn't experience actual sleep deprivation, the constant external stimuli are still omni-present, regardless of how well the conscious mind tunes them out. Perhaps sub+consciously parts of the brain never get any rest, even while sleeping? I know I feel less refreshed if I fall asleep and media or traffic outside is constant. A hotel room facing a freeway often…
Interesting about the fan blower. My wife started using that to prevent our young kids from being awakened by normal household noise. It reminded me of something I'd read years ago about people who worked in server rooms losing hearing sensitivity in the range of the constant low-level hum. Not sure how much exposure was required, but I encouraged her to use it sparingly.
In terms of pollution I'm assuming we are talking about NOx, PM2.5, and PM10. However it would be useful to understand if lead, banned in most countries around 2000, impacts dementia and whether this is now beginning to show itself within this study.
My favourite lead and violence link - http://motherjones.com/environment/2016/02/lead-exposure-gas...
Shouldn't car mechanics also have higher dementia rate?
General car mechanics probably not. I don't think they spend that much time next to running (and not just idling) engines. But I like that train of thought... how about professional drivers - truck, bus, taxi?
It is not pollution, it is the noise and the low quality of sleep that causes dementia. Good sleep quality is important so the glymphatic system that cleans the brain of garbage while sleeping can work well. See this recent article: https://www.scientificamerican.com/article/nedergaard-how-th...
PM2.5 particles from vehicle emissions are small enough to penetrate the blood-brain barrier and have been shown to end up in brain tissue.
Even if it isn't a direct cause of dementia, air pollution contributes to cardiovascular diseases which are themselves risk factors for dementia.
(I know they do statistical tests, but they often use the wrong tests.)
Shouldn't car mechanics also have higher dementia rate?
General car mechanics probably not. I don't think they spend that much time next to running (and not just idling) engines. But I like that train of thought... how about professional drivers - truck, bus, taxi?
Earlier quoted context omitted.
ANC/R works by sending out the opposite waveform of the noise, at about the same volume. It does not remove noise. Passive noise control through insulation is the best solution for residential buildings.
I have long wanted to investigate advanced methods of reducing noise transmission between rooms; it seems to me that's a area that will clearly need improvement if we really expect cities of the future to be towers and condos instead of standalone houses. But you're correct that whatever solution does exist won't look / act like noise-canceling headphones.