Whitten, who has a degree in kinesiology, exercise science and movement science, has studied natural health, fitness and nutrition for over 20 years. He's been a personal trainer, health coach and nutritionist for many years, and went on to do a Ph.D. program in clinical psychology.
Light as Nutrition
Red and near-infrared light are, of course, a subset of natural sunlight, which actually acts and has value as a nutrient. Red light and near-infrared light therapies are ways to get some of those benefits. It may be particularly valuable and beneficial for people who aren't getting enough natural sunlight exposure, and that's a majority of people. As noted by Whitten:
"There's a mountain of literature showing that regular sun exposure is one of the most powerful and important things you can do for your health and to prevent disease. Simultaneously, we have a general public that is afraid of sunlight.