Good Genes or Good Docs

Here's the 14-year-old back in 1978 (left) -- and 31 years later, the 45-year-old version at an event in NYC last week (right).

There must be something in that Walnut Grove water!

Here's the 31-year-old back in 1984 (left) -- and 25 years later, the 56-year-old version earlier this year (right).

He's as good as new.

Here's the 16-year-old back in 1981(left) -- and 28 years later, the 43-year-old version at an event in Hollywood this week (right).

Who wouldn't headbutt a fashion designer for her?!

Here's the 31-year-old red carpet host back in 1995 (left) -- and 14 years later, the 45-year-old version at an event in West Hollywood last month (right).

The question everybody wants answered isn't: Who are you wearing?

Here's the 32-year-old back in 1990 (left) -- and 19 years later, the 51-year-old version in L.A. this week (right).

She's no cat woman.

Here's the 34-year-old back in 1984 (left) -- and 25 years later, the 59-year-old updated version at an event in Malibu last week (right).

She's a well-oiled machine.

Here's the 29-year-old uptown girl back in 1983 (left) -- and 26 years later, the 55-year-old version at an event in NYC this week (right).

Why in the world would four men divorce her?!

Here's the 42-year-old back in 1982 (left) -- and 27 years later, the 68-year-old version in NYC last month (right).

We'll have whatever she's drinking.

Here's the 27-year-old Mexican/Irish-American actress back in 1979 (left) -- and 30 years later, the 57-year-old version at a concert in NYC last week (right).

What the hell was on that invisible jet?!

Here's the 21-year-old starlet back in 1989 (left) -- and 20 years later, the 41-year-old mother of three at her latest premiere in L.A. last week (right).

We'll drink your juice, Shelby!

Here's the 34-year-old multiple Grammy winner back in 1992 (left) -- and 17-years-later, the 51-year-old version in Palm Beach on Thursday (right).

Come on, shake your body baby, do the conga!

Here's the 24-year-old "Scarface" star back in 1982 (left) -- and 27 years later, the 50-year-old version in Berlin last month (right).

Here's 25-year-old Downey back in 1991(left) -- and 18 years later, the 43-year-old version at the Oscars this week (right).

Getting arrested and going to rehab a bunch of times really does the body good.

Here's the 54-year-old during his administration back in 1978 (left) -- and the 84-year-old version (right) at a NYC bookstore on Monday.

Peanuts do the body good.

Here's the flawless 24-year-old back in 1989 (left) -- and the 43-year-old version (right) in Paris on Monday.

Being ageless is in this season.

Here's 33-year-old La Lucci back in 1980 (left) -- and the 62-year-old version (right) at an event in NYC two weeks ago.

She should get an award or something.

More Good Genes or Good Docs: