I've had three out of body experiences that I think are completely attributable to things happening in my brain at the time. They were interesting and memorable

I've had three out of body experiences that I think are completely attributable to things happening in my brain at the time. They were interesting and memorable but I'm not sure they represented some kind of unmeasurable/unknowable para phenomena out of the reach of science. (One while falling asleep sitting up after many hours awake studying for exams in college, one while trying out some lucid dreaming techniques I'd read about, and one after underestimating the potency of some cannabis.)