Ken B.... Errrrr... I dunno if this IS really you, Ken. After all.. SERIOUS? <giggle> Actually, I found what ya explained to be very interesting and ya got me thinking (no wise-ass remarks about THAT, please!) <grin> The fan sits on my bedroom desk in front of the window. There's no light bulb between it or me as the fan faces out into the room. Of course, since it sits in front of an 8 foot long sliding door/window, the blades would definitely interrupt any natural daylight. I can recall when a civic group I used to belong to had it's monthly meeting in a local restaurant's banquet room there were windows all 'round the room, and four ceiling fans, each with a light as part of the fixture, hung above us as we dined and had our meeting. I ALWAYS began to get an "antsy" feeling within a short while after I arrived at the meeting. By the time I'd been there a while I was almost climbing the walls!!! While no one would have known it to look at me, inside my body there was that damnable "internal tremor," plus the feeling like my skin was crawling. It was AWFUL!!!!! Many times - but not every time - fluorescent lighting will trigger that "internal tremor" feeling. And when I go to a movie, I spend the first 1/2 hour or so feeling like my insides have turned into jello! Prior to my pallidotomy, I got TERRIBLE dyskenesia throughout any movie I sat thru (so I didn't go to a lotta movies after a while!). <rueful smile> By the way, I tried plugging in an "A" battery in my right ear and a radio in my left ear, and found that my teeth lit up when Garth Brooks sang! <LOL> Barb Mallut [log in to unmask] ---------- From: Parkinson's Information Exchange on behalf of KEn Becker Sent: Thursday, September 18, 1997 8:57 PM To: Multiple recipients of list PARKINSN Subject: Re: Internal Shakiness Barb M, the following is serious stuff (out of character for me, right?): In the USA, as far as I know in all states, the electrical current pulsates at 60 Hertz, originally known as 60 Cycles-per-second, so every appliance or device that runs from the power lines also pulses 60 times per second, if you look at a single light bulb you may be able to actually see it brighten and dim to that frequency. In other countries the frequency is 50 CPS, or maybe 25CPS, which was used many years ago in Canada, and parts of the USA, I have heard from a person who lived in Bufflo New York, where they had 25 CPS, it was very noticible. A fan motor will run at a multiple of the frequency, if you shine a bright light at the fan at 60 cycles, the fan will appear stopped. What your symptoms are caused by, may be a combination of either natural daylight being interupted by the fan blade at a repetitive rate, or a light bulb being interupted by the fan blades. If you have 4 blades blocking a light at 60 cycles per second, the eye sees 15 flashes a second. parkinson tremors are said to be in the range of 8 to 15 cycles per second.......When my dad was able to walk around, he seemed to have less problem with freezing in the light of the sun, basically a non-pulsed source of light, then when inside under a 60 cycle driven lighting system. I think there is a definite relationship here! Barb, does your feeling happen more or less depending on what kind of lighting is used? Do you have any fans that have lights mounted above the blades? If so, are they flourescent, or regular light bulbs? Ken B