Kara Swisher questions the red-light therapy obsession

<p>A new CNN Original Series <em>“Kara Swisher Wants to Live Forever” </em>examines the science, business, and ideology behind the pursuit of longer life.</p><p> </p><p> In this digital exclusive, Swisher solves the debate if red-therapy is backed y science or expensive hype. Watch the next episode of the series Saturday, April 18 at 9pm ET/PT on CNN, streaming next day on the CNN app.</p>