Does all capital letters mean you are yelling?

Does all capital letters mean you are yelling?
Yes. When you type in capital letters it is fine for emphasis, WE WON or THANK YOU, but the speed at which people read is 12% faster with both upper and lower case and reading in all capitals raises blood pressure in readers by 5%, so there is physiological evidence for typing in ALL CAPS BEING YELLING, YOU RUDE SOB.