What if bright light for 30 min each morning could increase a man’s sexual satisfaction and even boost his testosterone levels? How much less Viagra would be prescribed?
We know that light therapy (using a lamp that that has the right wavelengths and strength) is an effective treatment for SAD (seasonal effective disorder). We are still in the midst of learning about light therapy and all of its potential. But knowing that most babies are conceived in June, when we have the maximum hours of daylight, there is a basis for looking into the effect of light on reproduction. A group in Italy studied a group of 38 sexually unsatisfied men and shared their results with the European Congress of Neuropsychopharmacology in September. This group of men had a mean sexual satisfaction score of 2/10 at the beginning of the study. After just 2 weeks of treatment with 30 minutes of 10000 lux light each morning, the mean score had increased to 6/10. In the control group, who was treated with filtered light, the mean score was 2.7/10. In addition to the subjective satisfaction score, the mens’ testosterone levels almost doubled. The retinohypothalamic tract (sunlight to retina to hypothalamus) is well established as the circadian rhythm pathway. Treating our brains with bright light at various times of day has different effects. Bright morning light helps us wake up, energizes us, and according to this study may improve a man’s sexual satisfaction and testosterone levels. Conversely, bright light at night, or even that from our phones and computers, can cause insomnia, make it hard to get out of bed in the morning, and affect our mood in a negative way. We’ll have another post about that soon, along with information about the types of lights needed.
This is a fascinating area of study. Be prepared to see more chronotherapy (time and light therapies) as they are non-pharmacologic treatments. That means they cost less, and have fewer side effects or interactions with medications, and they are helpful for mental health issues at the very least, if not more. Further, here at any of our Kelly Goodman Group locations we are open to discussing any complementary, integrative, or functional medicine treatment you would like to try.