Humor:

Then: Long hair
Now : Longing for hair

Then: A keg
Now : An EKG

Then: Acid rock
Now : Acid reflux

Then: Moving to California because it's cool.
Now : Moving to California because it's hot.

Then: Watching John Glenn's historic flight with your parents
Now : Watching John Glenn's historic flight with your kids

Then: Trying to look like Marlon Brando or Elizabeth Taylor
Now : Trying not to look like Marlon Brando or Elizabeth Taylor

Then: The President's struggle with Fidel

Now : The President's struggle with fidelity
Then: Killer weed
Now : Weed killer

Then: The Grateful Dead
Now : Dr. Kevorkian

Then: Getting out to a new, hip joint
Now : Getting a new hip joint