As it turns out, multiple animal studies have shown benefits of red / near infrared light applied to the testes.
Here is one study, examining the benefits of a red laser to the balls of animals with spinal cord injury, which impairs testicular function and thus testosterone.
The light increased testosterone - at 810 nm.
(2/8)
Dalton (Analyze & Optimize)
@Outdoctrination
Here's another study - infrared light at 890 nm increased the volume of the testicles and the testosterone output after chemical sterilization.
A pretty big improvement, once again by shining light directly on the balls.
(3/8)
Dalton (Analyze & Optimize)
@Outdoctrination
Here's another one, showing similar results.
Restores T back to normal levels after chemical testicular impairment.
These studies have shown us that the light induces a few biochemical changes in the testes.
Here, inflammatory cytokines TNFΞ± and IL-1Ξ² were markedly decreased with light.
Meanwhile the anti-inflammatory cytokine CSIF was increased.
Apoptosis, which is cell death, measured by caspase 3, was also decreased.
Inflammation + cell death in the testes is a core cause behind low T and infertility, as the cells there are needed to churn out healthy sperm and testosterone.
(5/8)
Dalton (Analyze & Optimize)
@Outdoctrination
Oxidative stress is also lowered by this type of light.
The ratio of GSH/GSSG - the usable vs used forms of glutathione - was increased,
meanwhile the production of free radicals (DFC absorbance) was decreased.
Oxidative stress will impair steroid production by influencing steroidogenic enzyme expression + activity, and physically destroys the cells needed for it.
Red light lowers it.
(6/8)
Dalton (Analyze & Optimize)
@Outdoctrination
They also showed physical improvement of the testes.
Here you can see the seminiferous tubules, the area in which sperm are made.
With light - a big improvement in their function and structure.
(7/8)
Dalton (Analyze & Optimize)
@Outdoctrination
How does red light do this?
The main reason is due to the light's effect on mitochondria.
Certain wavelengths of light act on an enzyme called cytochrome c oxidase in this organelle, and activates it.
This causes:
β Greater ATP production β Less free radical production β Better NAD+/NADH ratio
all of which are vital to cellular health.
Additionally, the reduced free radical production:
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