Photobiomodulation is the application of red or near infrared light to muscles to enhance performance or recovery. The devices that do this are pricey and marketed as having pretty consistent benefits across a wide breadth of applications. But are they worth the investment and do they actually do what their makers claim? Dr. Rolf Halden is an environmental engineer and professor at Arizona State University. He co-wrote a report for the Pew Charitable Trusts on the environmental impacts of animal farming and is well suited to opine on the Game Changers.Finally, Reels for Wheels suggests Wanted and Drive for your trainer rides.