I've tried it a few times, but really disliked what it did to my short-term memory. For several days, my short term memory was really hampered. I also have a

I've tried it a few times, but really disliked what it did to my short-term memory. For several days, my short term memory was really hampered. I also have a former colleague who had a period where he smoked a lot and went through shampoo at a crazy rate, because even after sleeping a good 9 hours, he'd wake up and shower and by the end of his shower be unable to remember if he'd already washed his hair. He's pretty sure he was washing his hair an average of 3 to 4 times per shower.