Emerging science reveals that sunlight triggers vital antiviral, antioxidant, and respiratory-boosting effects far beyond vitamin D alone.
Have you ever had a cough that wouldn’t quit—one that slowly tightens your breathing day after day until you’re worried you’ll end up in the ER? Before reaching that point, there may be a natural, overlooked intervention that can dramatically support recovery: daily sunlight exposure.Dr. Roger Seheult, a quadruple board-certified physician in internal medicine, pulmonary diseases, critical care medicine, and sleep medicine, has witnessed the healing power of sunlight firsthand.
During the pandemic, Seheult cared for COVID-19 patients who were in critical condition and unable to breathe without medical assistance. After incorporating sunlight therapy, patients began to regain the ability to breathe on their own within days.
“We were able to take somebody who was almost ready to be intubated to off oxygen completely within five days, which is the fastest that I’ve ever seen somebody get off of oxygen,” Seheult told Brendon Fallon on “Vital Signs.”
Seheult’s success extends beyond acute cases. One long COVID patient had suffered with severe shortness of breath—eight out of 10 on a severity scale—for more than a year. Despite trying multiple treatments and running numerous tests, nothing helped. Then he made a simple recommendation: Get outside for 20 to 30 minutes every single day.
Three weeks later, the results were dramatic. The patient’s shortness of breath had dropped to just three out of 10—practically gone. After witnessing such transformations, Seheult now recommends sun exposure to nearly all his patients.
Concerns about sunburn and skin cancer have driven many people indoors, but by avoiding the sun, they may be missing out on critical health benefits. “There are many studies … that show that people who go outside, people who are in a sunlight environment, actually live longer,” Seheult said. Studies from the UK and Sweden have associated sun exposure with reduced overall mortality rates, including cardiovascular and cancer-related deaths.
The Missing Piece: It’s Not Just About Vitamin D
The benefits of sun exposure are often linked to vitamin D. However, Seheult learned there are more. After supplementing his patients with vitamin D, Seheult didn’t see the hoped-for results, leading him to examine whether sunlight affected health in additional ways.
“I began to wonder whether or not vitamin D was a marker of maybe something else that was happening,” Seheult said. “Maybe there was something about the sun that had nothing to do with vitamin D. Maybe it was working in a completely different way that was benefiting the human body, and that was something that was worthwhile investigating.”
Seheult learned that sun exposure may affect the body on a much deeper, cellular level.
By Brendon Fallon and Emily Allison
