Medical advice often falls on deaf ears.
Most people hate listening to advice in general. They are particularly resistant to unsolicited health warnings delivered by people they don’t know, don’t trust and can’t relate to. What self-respecting, meat-loving, beer-swilling, Cheetos-chomping, cigar-sucking guy who hasn’t seen his feet or his pecker without the aid of a mirror since the Reagan administration is going to take seriously health advice delivered by a young, malnourished, Perrier-sipping vegan of indeterminate gender?
Ain’t gonna happen!
If the audience can’t relate to the person offering the unsolicited and often inconvenient health warnings, the pearls of medical wisdom will be totally wasted.
I’d like to see an anti-smoking TV ad featuring a tough-looking redneck in his early 50s who coughs, gasps and chokes on camera for 45 seconds, spitting up blood clots before tearfully sputtering about how badly he’d like just one last cigarette.
Imagine the graphic impact of a 450 pound, forty-something year old guy who is about to undergo open-heart quadruple by-pass surgery making a brief televised statement about the joys of greasy, bacon laden cheeseburgers. The lights go off as they put the anesthetic mask over his chubby face and then, as the lights come back on, we see the same guy with a distinctly blueish hue being zippered up into a black body bag while a gruff voice (like Sam Elliott’s) solemnly says, “Fat fuckers die young!”
I think THAT might get the message across!

