Counting F's

I use to be able to count, but after reading this paragraph I figured out that I have Alzheimer's disease. Count the F's.

FINISHED FILES ARE THE RE
SULT OF YEARS OF SCIENTI
FIC STUDY COMBINED WITH
THE EXPERIENCE OF YEARS...

I only found three. If you only found three, you got Alzheimer's, Mania, and HSV1. There is six you senile, oversexed, maniac.