I never was a big fan of Oprah, but I did see a handful of shows through the years. A few minutes from one of those shows I will never forget, probably because I have replayed it in my mind over and over again.
The theme of the show was women who looked and acted younger than their age. In a good way. The guests were mostly in their 60's-80's, and looked like they were in their 30's-50's.
Oprah would bring out a guest, introduce them, and, after visiting for a few moments, reveal the guest's true age.
At which point, the entire audience was amazed and astounded and the guest would share a few bits of wisdom about how to best live your life.
Of course, each guest looked more amazing than the last. Finally, one attractive, well-spoken lady came out. After the age reveal Oprah picked her jaw up off the floor and asked how the woman did it.
By the way the question was worded and the nature of the show, every one was expecting some deep, inspirational answer.
"Moisturizer," the lady answered. "I have faithfully applied moisturizer to my skin every morning and every night for decades."
Oprah went fishing for more. Something more mystic or difficult. "No," the lady smiled, "just moisturizer."
So YES - drink your water. YES - live clean. YES - don't tan yourself silly. But hey... don't forget the moisturizer! :)