Effects of ultraviolet light exposure on blood pressure: a systematic review.
Photochem Photobiol SciAug 17, 2026 (epub)
Pirus Ghadjar, Natalia Syzonenko, Anastasia Lucia Strzebinczyk et al.
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In 30 seconds
This systematic review examined the effects of ultraviolet (UV) light exposure on blood pressure in human populations. It included 14 studies, most of which indicated that UV exposure, particularly UVA, is associated with reduced blood pressure, potentially through nitric oxide release. However, results varied significantly across studies.
Key findings
- Most studies indicated that UV exposure, especially UVA, is linked to reduced blood pressure.
- The blood pressure-lowering effect may be mediated by nitric oxide release from skin stores.
- Findings were heterogeneous, with some studies reporting no significant effects.
- Differences in study design and population characteristics contributed to variability in results.
Why it matters
Understanding the relationship between UV exposure and blood pressure could inform new strategies for managing hypertension, a major risk factor for cardiovascular disease. Clinicians should consider the potential benefits and risks of UV exposure in their patient populations.