Aging is controlled by single genes Aging is slowed by adversity Aging regulators can be modulated by small molecules Aging is slowed by eating stre… - David A. Sinclair

Why would we choose to focus on problems that impact small groups of people if we could address the problem that impacts everyone — especially if, in doing so, we could significantly impact all those other, smaller problems?

Aunque no es inmortal, el tiburón boreal Somniosus microcephalus sigue siendo un animal impresionante y está mucho más emparentado con nosotros. Es casi del mismo tamaño que un tiburón blanco y no alcanza la madurez sexual hasta los ciento cincuenta años. Los investigadores creen que el océano Ártico podría ser el hogar de los tiburones boreales que nacieron antes de que Colón se perdiera en el Nuevo Mundo. Según la datación por carbono 14, un ejemplar enorme podría haber vivido más de quinientos diez años, al menos hasta que los científicos lo capturaron para poder dictaminar su edad. El hecho de que las células de este tiburón envejezcan o no es un debate científico abierto; muy pocos biólogos habían estudiado al S. microcephalus hasta hace unos años. Como mínimo, este longevo vertebrado experimenta el proceso del envejecimiento muy pero que muy despacio.

Even if they don't recognize its violence, children come to understand the tragedy of death surprisingly early in their lives. By the age of four or five, they know that death occurs and is irreversible.2 It is a shocking thought for them, a nightmare that is real. A "GOOD, LONG LIFE." My grandmother "Vera" sheltered Jews in World War II, lived in primitive New Guinea, and was removed from Bondi Beach for wearing a bikini. The end of her life was hard to watch. "This is just the way it goes," she said. But the person she truly was had been dead many years at that point. At first, because it's calming, most children prefer to think that there are certain groups of people who are protected from death: parents, teachers, and themselves. Between 5 and 7, however, all children come to understand the universality of death. Every family member will die. Every pet. Every plant. Everything they love. Themselves, too.