At one point in my life I wasn't exposed to any fluorescent lighting in months, probably at least two. I finally had to go to the bank to start an account up, and the lights in there were fluorescent and I instantly became tired, brainfogged, and a bit grumpy. It certainly made me want to avoid those lights completely.

They do flicker at an irritating rate not detected by our eye.

I use incandescent but keep it to a minimum by waking up with the sun and going to bed shortly after it sets.