Heart rate increases because blood pressure drops. That's not always a bad thing. As far as memory loss goes, you're 100% wrong. It can fight Alzheimer's. It causes new neurons to generate, and new connections in the brain to form. As far as hallucinations go, cannabis hallucinations are mild, the rare times they do occur. Benadryl causes MUCH more vivid hallucinations. If you're open to it, hallucinations can actually be quite insightful and meaningful. Heard of something called a vision quest? Really, this just comes down to a fundamental difference of opinion about what is good or bad, right or wrong. You're not making any headway here. Apparently, neither am I. What do you say we call it a day? Regardless of your answer, I'm calling it. Peace.