Just as many people have no concept of how their own brain or body funtion, many have no concept of what BP is. The average IQ in this country is shockingly low and ignorant people will trivialize anything.
Common knowledge and common sense go hand in hand with pushing people out of high school who can only read at a fifth grade level. We live in the most affulent country in the world, yet care for the homeless ad the mentally ill is at a very low priority. So those who brains consist of 75% air should be ignored and pitied for the sparkless drones thy are who will mock anyone to get a laugh.