Research Finds Blue Light Exposure Helps to Decrease Blood Pressure

A new study published in the European Journal of Preventative Cardiology reported that exposure to blue light would decrease blood pressure and reduce the risk of developing cardiovascular disease.

In previous studies, it is shown that UV light can help the skin to release nitric oxide and decrease blood pressure. Researchers from the University of Surrey and Heinrich Heine University Dusseldorf have collaborated with Philips to learn whether body exposure to blue light also has the same effect as visible blue light is not carcinogenic compared to UV light.

(Image: Pixabay)

In the study, participants were exposed to 30 minutes of whole-body blue light at approximately 450 nanometres, the wavelength similar to daily sunlight - followed by exposure to a control light on a different day. To assess the impact, participants' blood pressure, artery stiffness, blood vessel dilation and blood plasma levels of nitric oxide stores were measured before, during, and up to two hours after irradiation with both lights.

With the experiment, researchers discovered that exposure to whole-body blue light significantly reduced the systolic blood pressure of participants by almost 8 mmHg, compared to the control light which had no impact. According to the study, the reduction of blood pressure from blue light is similar to what is seen in clinical trials with blood pressure lowering drugs.

Besides blood pressure lowering effects, the study also showed that exposure to blue light improves other cardiovascular risk markers including reduction of arterial stiffness and increasing blood vessel relaxation. This further supports that light could be used to prevent cardiovascular disease. Researchers also found that exposure to blue light increased levels of nitric oxide which is an important signaling molecular that protects the cardiovascular system. It is believed that blue light releases from the skin into the blood stream where it relaxes the blood vessels, increasing blood flow and decreasing blood pressure.

"Exposure to blue light provides an innovative method to precisely control blood pressure without drugs. Wearable blue light sources could make continued exposure to light possible and practical. This would be particularly helpful to those whose blood pressure is not easily controlled by medication, such as older people," said Christian Heiss, Professor of Cardiovascular Medicine at the University of Surrey and NHS consultant.

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

Tokushima, Japan – 25 January 2023: Nichia, the world’s largest LED manufacturer and inventor of high-brightness blue and white LEDs, is pleased to announce the additions of the NVSW719AC and NVSW219C-V2 to its industry standard ce... READ MORE

Pro9™ LEDs set the new standard for high fidelity (90 & 95 CRI min) LEDs   15% higher efficacy for 90 & 95 CRI LEDs 90 CRI light quality at 80 CRI LPW 95 CRI light quality at 90 CRI LPW Upgrade light quality without sacrific... READ MORE