Waste not, want not
Youthfulness is a state of mind. Seniors with "young" attitudes continue to grow and learn, well into their golden years; they take challenges in stride. They are contented. On the other hand, younger folks who are prematurely "old" find their lives meaningless and devoid of color. They "die" before their time because their underutilized gifts waste away. They are more needy, because they sabotage themselves by their own attitudes.