It's not really suicidal, but it's like taking drugs.. it shows a careless disregard for life and health.
rarely does anyone think that it will apply to them (willing to play the odds) . . . like taking a medicine to relieve arthritis (that has been know to cause dearth) or sky-diving or race car driving . . . or just lack the fortitude to change a lifestyle of addiction like smoking, overeating, etc..
no, it's not suicidal. Maybe, he/she just would like to have something exciting than he/ she usually do.. or maybe he/she would just like to test physical/ emotional strength towards that stuff..
Its not really....Death is inevitable, sooner or later...but if what ever the cause of you doing what you say might end in death is a decision that makes you happy and fills you ....