[RevRal]

Perhaps there can be screenings at some frequency to determine one's health. If a person consistently shows a lack of inclination to take care of themselves and follow advice, that behavior is logged and they automatically get de-prioritized when waiting lists are involved. I would assume that generally healthy people are just more of a positive investment, but if someone makes the motions of good health but encounters some life-changing event then they can be said to have shown an inclination to take care of themselves.