As boys, we dreamed of super strengths like in legends [1] .. childish. A more realistic dream is super longevity like above 90. It requires

• effort, absorbency
• luck, genes
• healthcare “infrastructure” of the local government. It can provide low-cost quality care.
• healthcare resources of your family or your organization. It usually costs millions, hopefully lower.

[1] By the way, super-flexibility or endurance is never “legendary”.