What did Kenny “The Snake” Stabler look like at 38 years young?

It was the smoking.

It wasn’t just if you smoked or not, everywhere you went indoors you were inhaling cigarette smoke and just existing in a cloud of smoke … usually from the moment you got home from the hospital as a baby.

Add in the greater awareness of the effects of the sun along with the normalized use of sunscreen and most people aren’t prematurely aging their skin/hair.
In Stabler's case, it was more of a byproduct of years of drinking, smoking, and occasional drug use, which in his autobiography he sort of hints at like taking codiene but tends to not elaborate further. Stabler was also known as a bit of a hell-raiser and trouble maker in Gulf Shores Redneck Riviera as well as a womanizer and a bit of a philanderer. One time his wife caught him in bed with another woman when she arrived home earlier then expected and in a fit of rage, she locked him out of his house with barely any clothes on.

A player of Stabler's reputation as well as his own actions being exposed, ridiculed or plastered all over social media outlets like Tik Tok, Twitter, and Facebook wouldn't last very long today. He'd be fined, suspended, labeled a degenerate redneck, "trailer park trash" by the NFL's Personal Conduct Policy if he played today or he'd have to be super-discreet and someone like Stabler never struck me as being ultra-discreet when it came to how he lived his private life back then. I suspect Stabler probably also came to the realization in his last years that he wouldn't be inducted into Canton until after his death.