Moult studies have shown the control power our brain has.
From relaxing yourself, to decreasing your breathing rhythm and auto-hypnotizing yourself to sleep (all three of which I have experienced), we have a lot of control on our bodies and functions.
I have heard (no sources to back this claim up) that one is unable to commit suicide by not breathing if in an oxygen-ful environment. The reason I heard is that one may stop breathing until passing out, but then normal operation mode resumes once you are passed out: one starts breathing again.
Since we have so much control on our bodily functions, shouldn't it theoretically be possible to commit suicide by requesting a brain shutdown.
The heart is an automatic organ which does not need a brain to function. So stopping one's heart by will isn't possible.
The brain on the other hand, is easily tricked and hypnotized. Which makes me wonder if someone suffering from severe depression could hypnotize themselves / meditate into a coma which may end in death.
Am I assuming too much power to our brain bodily function controls? Or, on the other hand, do my claims seem feasible?