UVA exposure
For natural ways to increase dopamine
The experts we follow agree on this.

UVA light helps support dopamine, serotonin, and thyroid hormone production.
Who is behind it
Voices including a molecular biology PhD, a board-certified cardiologist and an optometrist of twenty years.
How strong the research is
Mostly expert experience so far, with published research still catching up.
In their words
“UVA light can lower blood pressure on its own... UVA exposure to the skin mobilizes nitric oxide from storage pools in the dermis.”
a GP with a Master of Public Health
UVA light hitting the skin induces nitric oxide release from blood vessels, which helps dilate arteries.
Morning UVA exposure is needed for many health reasons.
Morning UVA triggers a cascade of hormones and neurotransmitters beneficial for health.
UVA exposure at this time helps optimize mood by increasing beta-endorphins and supports metabolism regulation.
UVA light exposure through naked eyes produces dopamine, serotonin, beta endorphins and more, which is highly beneficial.
A daily UVA-rise walk helps experience the incredible benefits of an aligned circadian rhythm and makes a significant difference during gloomy winter.
With care
Some of the minds attach conditions. These are worth reading before you begin.
Some mitochondrial diseases may improve with more UVA and sunrise light exposure, which is limited at high latitudes.
Talk it through
Entrain shows what the experts teach, so you can make better decisions with your own clinician. It does not diagnose or prescribe. If something is worrying you, start there.
How this reading was made
Every line here comes from a doctor, scientist or coach speaking publicly, and links to the moment they said it. Entrain listens for where independent experts arrive at the same place on their own, and shows where they part ways. Mostly expert experience so far, with published research still catching up.
None of the statements here come with a declared commercial interest. Last refreshed 23 September 2026.
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