Tanning is one of those rare activities that when done in moderation is still bad for you. Recent research proves that even sunscreen doesn't protect you from harmful UV and UVB rays that can cause skin cancer. But like with cigarettes and unprotected sex with strangers, some human beings seem bent on destroying themselves.

With that in mind, we put together a gallery that is both a cautionary glimpse of the damaging effects of the sun as well as an ode to the stupefying and painfully irrational Homo sapien behavior.

Enjoy, and for God's sake, don't let this be you.

Amanda Seyfried -- Todays Crush

    Attending the premiere of "Mamma Mia!" at the Ziegfeld Theatre in New York City.

    Jim Spellman, WireImage.com

    Shown on the cover of a poster for "Mamma Mia!" the movie.

    Stephen Lovekin, Getty Images

    Plays Sophie in "Mamma Mia!"


    As Sophie in "Mamma Mia!" alongside her character's mother played by Meryl Streep.


    As Karen in "Mean Girls".


    At Kari Feinstein's Style Lounge.

    John Sciulli, WireImage.com

    As Samantha in "Nine Lives".

    Magnolia Pictures

    Attending the Los Angeles premiere of "Alpha Dog".

    L. Cohen, WireImage.com

    As Julie Beckley in "Alpha Dog".


    Attending the Los Angeles Premiere of "Thief."

    Jesse Grant, WireImage.com