J Invest Dermatol July 2014 PMID 24445737

UVA irradiation of human skin vasodilates arterial vasculature and lowers blood pressure independently of nitric oxide synthase.

Donald Liu, Bernadette O Fernandez, Alistair Hamilton, Ninian N Lang, Julie M C Gallagher, David E Newby, Martin Feelisch, Richard B Weller

Mentions

125
Peak: 14 in Dec 2019
across 5 sources since Dec 2019

Extended reach

480,840
potential audience

Total likes

354

Video views

4,055

Mentions per month

Dec 2019 – Oct 2025

Where it's discussed

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AI synopsis

What people are saying

Overall, the discussions exhibit a positive tone, with statements like 'Another win for sunlight' and references to sunlight's role in reducing blood pressure, indicating support and curiosity. The use of enthusiastic words and assertions about sunlight's health benefits demonstrates moderate engagement and a belief in the potential importance of these findings for broad health practices.

AgreementModerate agreement

Most discussions support the idea that UVA exposure can lower blood pressure, highlighting the positive impact of sunlight on cardiovascular health.

InterestModerate interest

The topics generate moderate interest, with users referencing the health benefits of sun exposure and potential implications, but not deeply exploring scientific details.

EngagementModerate engagement

Comments reflect engagement through sharing related health claims and emphasizing the significance of the findings, although few delve into technical or methodological aspects.

ImpactModerate impact

Users generally perceive this research as impactful for public health, especially regarding lifestyle and prevention strategies, though some mention the need for more robust evidence.

Abstract in brief

  • UVA light exposure on human skin can lower blood pressure by increasing nitric oxide (NO) in the blood, and this process happens independently of the enzyme that usually produces NO.
  • The study found that UVA causes NO release mainly from stores in the outer layer of the skin, leading to increased blood flow without needing circulating nitrate from diet.
  • These findings suggest that the skin plays a key role in controlling NO levels and may help explain why blood pressure and heart disease risk vary by location and season.]

Top posts

Most liked on X and Bluesky
P.D. Mangan Health & Freedom Maximalist
@Mangan150 · X

UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synthase Get some sun. https://t.co/WkAagwO9nL

Dec 23, 2019 · 58 likes · 16 shares · 295,781 followers View post →
Aleksis Kallio
@aleksis_kallio · X

Lähdeluettelo: Liu D. et al. “UVA irradiation of human skin vasodilates arterial vasculature and lowers blood pressure.” J Invest Dermatol (2014). Christakos S. et al. “Vitamin D: A micronutrient regulating genes.” J Clin Endocrinol (2019) – VDR-aktivaatio ohjaa > 1000 geeniä.

May 27, 2025 · 50 likes · 5,255 followers View post →
⚡️ The Blue Light Diet ⚡️
@BlueLightDiet · X

And it’s not just the UVB and #VitaminD that helps prevent #cardiovascular disease. Don’t forget about the UVA sunlight that sunscreens also block. Can you now guess a big reason why America has a high blood pressure problem? https://t.co/RdCVaHLjZV https://t.co/4OrVlBZJTq https://t.co/0c6JMbFwXk

Jun 1, 2022 · 15 likes · 3 shares · 32,698 followers View post →
Raphael Sirtoli
@raphaels7 · X

https://t.co/raxuRETRaq sunshine⬇️blood pressure (BP) independently of nitric oxide synthase & circulating nitrates. eating nitrate rich food (e.g. veggies) doesn't lower blood pressure upon UVA radiation. nitric oxide in the dermis appears to be the source of⬇️BP

Aug 10, 2021 · 6 likes · 8,595 followers View post →
Dr John La Puma
@johnlapuma · X

@NeilKingston @letseathealthyy @DrSubhasree @sunrainmakerain @chitguppi @c19d3k2 @BogochIsaac @SueDHellmann @DrTomFrieden @ScottAdamsSays @Mark_Sisson @chriskresser @davidasinclair @Mundra08 Sunlight causes the skin to manufacture #vitaminD, but it also causes the skin to make large amounts of nitric oxide https://t.co/QI2uSPReFA. #Nitricoxide can lower or prevent #highbloodpressure https://t.co/a1Z9VZ4xNI

Sep 9, 2020 · 4 likes · 1 share · 7,397 followers View post →
The Rimu Studio
@sunbuddiesss · X

rujukan : https://t.co/n2tDJoN9CL

Nov 15, 2022 · 4 likes · 2 shares · 1,499 followers View post →

All mentions

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Take a deep dive into the world of SPF as Liz reveals why she doesn't use sunscreen every day in her beauty routine. This decision is backed by research on sunscreen ingredients and their effects, highlighting potential…

Liz Earle Wellbeing · Oct 8, 2025 4,031 views
Austin Fitzpatrick
@AustinJFitz · X

UVA exposure lowers mean and diastolic blood pressure. Another win for sunlight. Liu, D., Fernandez, B. O., Hamilton, A., Lang, N. N., Gallagher, J. M. C., Newby, D. E., … Weller, R. B. (2014). UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood https://t.co/Y7dM3RaHxH

Aug 13, 2025 · 110 followers View post →
ENDALA klinika zdraví
@endalaclinic · X

UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synthase - ScienceDirect https://t.co/lS980Mqnea

Aug 13, 2025 · 254 followers View post →
Science of Fitness
@NoMoreFitLies · X

❤️ Sunlight boosts heart health Sunlight helps lower blood pressure by increasing nitric oxide in the skin.

Jun 28, 2025 · 1,237 followers View post →
Aleksis Kallio
@aleksis_kallio · X

Lähdeluettelo: Liu D. et al. “UVA irradiation of human skin vasodilates arterial vasculature and lowers blood pressure.” J Invest Dermatol (2014). Christakos S. et al. “Vitamin D: A micronutrient regulating genes.” J Clin Endocrinol (2019) – VDR-aktivaatio ohjaa > 1000 geeniä.

May 27, 2025 · 50 likes · 5,255 followers View post →
Rahul Sharma
@rsmedicdrivers · X

RT @jack_schroder_: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide…

Sep 13, 2024 · 1 share · 13 followers View post →
Jack
@jack_schroder_ · X

UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synthase https://t.co/wfVSLT9leL

Sep 12, 2024 · 1 like · 1 share · 15,723 followers View post →
Circadian Body
@circadianbody · X

5. Blood pressure: Some studies have also suggested that exposure to sunlight may help lower blood pressure, which can reduce the risk of heart disease and stroke. https://t.co/bmI9P1ktjQ

Mar 21, 2023 · 1 like · 683 followers View post →
Dr Kpakpo
@DrKpakpoAcquaye · X

According to some researchers, rates of high blood pressure also correlate with latitude (i.e. less near the equator) and generally rise during winter.https://t.co/7yyLECl72B

Mar 11, 2023 · 5,849 followers View post →
Nur Zainab
@nurzainabjamal · X

RT @sunbuddiesss: rujukan : https://t.co/n2tDJoN9CL

Nov 18, 2022 · 2 shares · 87 followers View post →
James Tang
@James69888 · X

RT @sunbuddiesss: rujukan : https://t.co/n2tDJoN9CL

Nov 16, 2022 · 2 shares · 1,623 followers View post →
The Rimu Studio
@sunbuddiesss · X

rujukan : https://t.co/n2tDJoN9CL

Nov 15, 2022 · 4 likes · 2 shares · 1,499 followers View post →
sunflwr
@sunflwr971 · X

RT @BlueLightDiet: And it’s not just the UVB and #VitaminD that helps prevent #cardiovascular disease. Don’t forget about the UVA sunlight…

Oct 25, 2022 · 3 shares · 460 followers View post →
Chris Easton
@easto82 · X

We (https://t.co/UAoJN0faD4) and others (e.g. https://t.co/vOYRZDVkiq) have shown that ultraviolet (UV) light enhances nitric oxide availability by mobilising storage forms from stores in the skin. (2/8)

Jul 4, 2022 · 1 like · 1,636 followers View post →
James Tang
@James69888 · X

RT @bluelightdiet: And it’s not just the UVB and #VitaminD that helps prevent #cardiovascular disease. Don’t forget about the UVA sunlight…

Jun 7, 2022 · 3 shares · 1,623 followers View post →
Chipman
@Chipin8or · X

RT @bluelightdiet: And it’s not just the UVB and #VitaminD that helps prevent #cardiovascular disease. Don’t forget about the UVA sunlight…

Jun 1, 2022 · 3 shares · 269 followers View post →
⚡️ The Blue Light Diet ⚡️
@BlueLightDiet · X

And it’s not just the UVB and #VitaminD that helps prevent #cardiovascular disease. Don’t forget about the UVA sunlight that sunscreens also block. Can you now guess a big reason why America has a high blood pressure problem? https://t.co/RdCVaHLjZV https://t.co/4OrVlBZJTq https://t.co/0c6JMbFwXk

Jun 1, 2022 · 15 likes · 3 shares · 32,698 followers View post →
For health-promoting environments
@SilkeLeFay · X

#CVD #CardioTwitter #publichealth #hypertension #bloodpressure #midwifery #healthpromotion #ActOnNCDs #CVD #heartdisease #healthliteracy #occupationalhealth #CKD UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure . https://t.co/wWFYSGyJwW

Aug 24, 2021 · 4,588 followers View post →
Raphael Sirtoli
@raphaels7 · X

https://t.co/raxuRETRaq sunshine⬇️blood pressure (BP) independently of nitric oxide synthase & circulating nitrates. eating nitrate rich food (e.g. veggies) doesn't lower blood pressure upon UVA radiation. nitric oxide in the dermis appears to be the source of⬇️BP

Aug 10, 2021 · 6 likes · 8,595 followers View post →
Mughal Dermatology
@MughalDerm · X

@whybrew_chin Ooh. That's a tricky and nuanced one. https://t.co/Xc0DXQv1Oq The sun exposure with melanoma is due to things like exposure in areas not usually exposed. Lowering of blood pressure is all year round in places closer to the equator. More about where you live than sunbathing.

Mar 30, 2021 · 733 followers View post →
DancingDax
@DancingDax · X

https://t.co/867N4L5E2w?

Feb 24, 2021 · 563 followers View post →
Rajeev Chitguppi
@chitguppi · X

RT @johnlapuma: @NeilKingston @letseathealthyy @DrSubhasree @sunrainmakerain @chitguppi @c19d3k2 @BogochIsaac @SueDHellmann @DrTomFrieden @…

Sep 9, 2020 · 1 share · 2,779 followers View post →
Dr John La Puma
@johnlapuma · X

@NeilKingston @letseathealthyy @DrSubhasree @sunrainmakerain @chitguppi @c19d3k2 @BogochIsaac @SueDHellmann @DrTomFrieden @ScottAdamsSays @Mark_Sisson @chriskresser @davidasinclair @Mundra08 Sunlight causes the skin to manufacture #vitaminD, but it also causes the skin to make large amounts of nitric oxide https://t.co/QI2uSPReFA. #Nitricoxide can lower or prevent #highbloodpressure https://t.co/a1Z9VZ4xNI

Sep 9, 2020 · 4 likes · 1 share · 7,397 followers View post →
For health-promoting environments
@SilkeLeFay · X

#agedcare #ageing #COVID19 #hypertension #bloodpressure #heartdisease #stroke #beatNCDs #NCDs #SDGs #health #epidemiology #statistics #publichealth #dementia #CVD UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure https://t.co/wWFYSGyJwW https://t.co/u0arbTIK7v

Aug 21, 2020 · 4,588 followers View post →
Jaime Raúl Molina
@jaimeraulmolina · X

@Braxerius @linaresfulo Aquí el doi del estudio. https://t.co/duG0U5M5ar En cuanto a las guías clínicas, estas no son particularmente basadas en evidencia robusta. Para muestra, Cardiología, una de las especialidades con más ensayos, % de recomendaciones respaldadas por evidencia robusta es bien bajo. https://t.co/VtA6CLjzYM

Feb 29, 2020 · 9,639 followers View post →
Lorraine Lanning
@Common_SenseCO · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 24, 2019 · 16 shares · 1,629 followers View post →
Paleo-Autist
@PaleoAutist · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 24, 2019 · 16 shares · 2,128 followers View post →
Mind Marauder Brigand
@whysosiriuspod · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 24, 2019 · 16 shares · 175 followers View post →
DRS
@DRySor · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 24, 2019 · 16 shares · 453 followers View post →
Leland Stillman, MD
@StillmanMD · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 24, 2019 · 16 shares · 24,179 followers View post →
EpiK
@0xTheGreatApe · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 11,130 followers View post →
“Degen, Karl Degen”
@DegenKarl · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 194 followers View post →
Mass Migration
@BChinatti · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 1,203 followers View post →
JJP
@BackRoadsYeti · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 545 followers View post →
Restive Rabble
@RestiveRabble · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 955 followers View post →
Ginger
@HandyGingerGal · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 23,002 followers View post →
Johnny
@JohnnyNoblebody · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 6,808 followers View post →
Lαzαɾմs
@gran1_ly · X

RT @Mangan150: UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synth…

Dec 23, 2019 · 16 shares · 211 followers View post →
P.D. Mangan Health & Freedom Maximalist
@Mangan150 · X

UVA Irradiation of Human Skin Vasodilates Arterial Vasculature and Lowers Blood Pressure Independently of Nitric Oxide Synthase Get some sun. https://t.co/WkAagwO9nL

Dec 23, 2019 · 58 likes · 16 shares · 295,781 followers View post →