Hair

I have no problems with the gradual decay of the human body. It's right in line with the gradual growth and development of a person -- from "Mama, Dada" through K-12 education through career twists/turns through relationship ups/down all the way to the moment one ceases to be. If you look on the bright side, old age has its benefits. Younger people are often quite pleasant around them, and show them a great deal of respect. One reason, I'm sure, is because they realize that old people will soon cease to be.

For Earth 2.0, may I ask that you keep an aging person's hair youthful and dynamic right to the end? Give them a little victory each day. Let me offer you an example. In the song, "Why I Sing the Blues," B.B. King belts out these lines:
Now Father Time is catching up with me
Gone is my youth
I look in the morning every day
And Lord it tells me the truth

Let mirrors of the future balance aging facial features with a full head of hair, styled as desired by the decaying person.