Why can't I cry anymore?

For the last year or so, I haven't been able to cry anymore. And when I do, absolutely no tears come out. My eyes just water up, but there are no tears. Is this normal? Should I be worried?


Are my tremors from marijuana use or anxiety?

I have smoked marijuana on and off for about a year, not ever more than about once every other week. The last two times I smoked, I experienced uncontrollable tremors in my leg. It wasn't painful like a muscle spasm, but it was uncomfortable and unsettling. Was this merely nervousness (this was the first time I had people "over" at my own suite to smoke and I was a little worried that my roommates would be angry)? Or, could this be a side effect of the drug?


Are there eye exercises for improved vision?

My question is regarding eye exercises. I am short sighted and wear my glasses constantly. Recently I came across some eye exercises which claim that they can help you restore your vision. Their reasons seem convincing. But if this were true, why do the majority of people with poor vision still wear glasses. I just want to know if it's possible to restore your vision by doing these exercises? If not, is there any other way to restore vision without undergoing surgery? Finally, is there any way to ensure that my eye sight does not get any worse?


Can you tell me more about the efficacy, safety, and legality of Cannabidiol (CBD) oil?

I recently heard about CBD oil - that it can be effective for chronic pain and anxiety, both of which I've struggled with (and seen many specialists about) for years. But when I went looking for more information, I couldn't find many resources that looked like they came from legitimate, trustworthy sources. Can you shed some light on the subject?