170: How Does Light Affect Your HRV?

In this episode, I explore the connection between your light environment, the vagus nerve, and heart rate variability (HRV). Drawing on a 2025 systematic review of 25 studies, I explain how both the timing and quality of light exposure can influence nervous system function and overall recovery.I discuss how morning exposure to bright, blue-enriched light helps regulate your circadian rhythm and support healthy biological rhythms, even if it may cause a temporary reduction in HRV. In contrast, warmer, dimmer light in the evening can help promote relaxation and prepare the body for restful sleep.I also share practical strategies for optimizing your daily light exposure, particularly for individuals who experience anxiety, stress, or heightened sensitivity to environmental factors.As a simple challenge, I invite you to pay closer attention to your light habits for one week. Aim to get natural light in the morning and use warmer, lower-intensity lighting in the evening. Observe how your HRV responds over time, rather than focusing on moment-to-moment changes. If you find this episode valuable, share it with someone who may benefit from it. Small changes in daily habits can have a meaningful impact on long-term health and well-being.Dr. Navaz HabibEmail: [email protected]: https://www.facebook.com/DrNavazHabib/Instagram: https://www.instagram.com/drnavazhabib/LinkedIn: https://ca.linkedin.com/in/drnavazhabib