.Cartoon by Don Mayne
As depicted by this funny Don Mayne cartoon, if you put research participation as a whole besides some seriously risky professions, you can only wonder: why would anyone choose to do that? Especially when benefits to individuals might be minimal, many cases in my be at best, just our best guess. For some potential participant cohorts, their reasons might be selfless and a desire to make a contribution to an area of scientific inquiry. Not a benefit to themselves but to people in the future.