Struggling to fall asleep at night, feeling wide awake when you should be tired, or dragging yourself out of bed every morning? Your light exposure may be playing a bigger role in your sleep than you realize. Dr. Holly Carling and Alicia explore how blue light and circadian rhythms affect sleep, energy, hormones, and the body’s natural day-night cycle.
Blue light isn’t inherently bad. In fact, your body needs bright light during the day to support alertness, mood, and a healthy sleep-wake cycle. Dr. Carling explains why too much light at night can interfere with melatonin, how everyday LED bulbs and screens affect your body’s timing signals, and what you can change to support better sleep.
In this episode:
- How your circadian rhythm influences sleep, hormones, metabolism, immune activity, and cellular repair, and why light is one of the body’s strongest timing signals
- Why morning sunlight can help regulate your sleep-wake cycle, even on cloudy days, and how to build light exposure into your morning routine
- How evening screen time, bright overhead lights, and bedroom electronics can interfere with melatonin and what to change in your home lighting
- Practical ways to improve sleep with dark mode, warm lighting, a darker bedroom, consistent wake times, and strategic use of bright light therapy lamps
Interested in exploring a different approach to your health? Learn how we address the underlying factors that can interfere with restful sleep on our Sleep Disturbances page.
