Your Eyes, the Sun & Hormones: How Melatonin, Vitamin D & Tyrosine Keep You in Balance

Ever wondered how sunlight through your eyes affects sleep and hormones? We break down circadian rhythm science and explain how your retina uses light to balance melatonin, vitamin D, and tyrosine production.

Key Topics Covered:

Solar Spectrum: How visible light (43%), infrared (50%), and UV (7%) regulate your biological clock.

Retinal Pathways: How daylight signals your brain and skin to drive focus, mood, and sleep.

Tyrosine & Melatonin: The role of light in amino acid synthesis and timing natural hormone release.

Sunglasses & Blue Light: When to allow natural light exposure vs. when eye protection is needed.

Melatonin Guidelines in Canada: For adult use, choose products with a Natural Product Number (NPN) on the label and start with the lowest effective dose (0.5–1 mg).

Note for Parents: As of June 2, 2026, Health Canada requires a prescription for all sleep-related melatonin products for individuals under 18. Over-the-counter options are no longer available for minors. Consult a licensed healthcare provider to assess sleep hygiene first.

HEALTH CANADA SAFETY & REGULATORY NOTICE

Melatonin Warnings: Consult a healthcare practitioner prior to use if taking blood pressure, sedative, or immunosuppressive medications, or if you have cardiovascular, immune, liver, or kidney conditions.

Contraindications: Do not use if pregnant or breastfeeding. Do not drive or operate machinery for 5 hours after taking melatonin. Consult a provider if sleeplessness persists beyond 4 weeks.

Vitamin D Limits: The Health Canada Tolerable Upper Intake Level (UL) for Vitamin D in adults is 4,000 IU (100 mcg) daily. Do not exceed this without medical supervision.

Disclaimer: For educational/cosmetic purposes only. Does not diagnose, treat, cure, or prevent any medical condition. Not a substitute for professional medical advice.

Like, share, and subscribe! Connect with Ida Fanelli: www.Linktr.ee/idafanelli

#CircadianRhythm #Melatonin #VitaminD #SunlightBenefits #EyeHealth #HormoneBalance #InfraredLight #LightTherapy #RedLightTherapy #Melanin #Biohacking #NaturalWellness #SunGazing #Sunglasses #MorningSunlight #SleepHacks

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