PEAK PERFORMANCEWeeks to result

Healthy Lighting Framework

Optimize Lighting for Health

Problem it solves

Healthy Lighting Framework addresses declining mental and physical wellbeing by providing evidence-based practices for sustaining long-term health and vitality.

Best for

Individuals spending most of their time indoors

Not ideal for

Those who spend most of their time outdoors

Overview

Why this framework exists

The Healthy Lighting Framework emphasizes the importance of using lighting that promotes health and well-being. This includes using incandescent or halogen bulbs, which produce a more natural spectrum of light, and avoiding LED lights, which can suppress mitochondrial function. The framework also highlights the need to get outside and expose oneself to natural light, especially for children and individuals who work in LED-rich environments.

Core principles

3 total
  1. Use lighting that promotes health and well-being
  2. Avoid LED lights, which can suppress mitochondrial function
  3. Get outside and expose oneself to natural light, especially for children and individuals who work in LED-rich environments

Steps

3 steps
  1. Assess Your Lighting Environment
    Evaluate the lighting in your home, workplace, or school to determine if it is promoting health and well-being. Consider the type of lighting used, the color temperature, and the intensity.
    Pro tipUse a light meter to measure the intensity of the lighting
    WarningBe aware of the potential negative effects of LED lighting on human health
  2. Replace LED Lights with Incandescent or Halogen Bulbs
    Replace LED lights with incandescent or halogen bulbs, which produce a more natural spectrum of light. Consider using dimmer switches to reduce the intensity of the lighting.
    Pro tipUse a dimmer switch to reduce the intensity of the lighting
    WarningBe aware of the potential fire hazard of incandescent bulbs
  3. Get Outside and Expose Yourself to Natural Light
    Spend time outside, especially during the day, to expose yourself to natural light. This can help regulate your circadian rhythms and promote health and well-being.
    Pro tipTake a walk outside during your lunch break
    WarningBe aware of the potential negative effects of excessive sun exposure

Checklist

Saved in your browser

Examples

1 cases
Schools Replacing LED Lights with Incandescent Bulbs

A school replaced their LED lights with incandescent bulbs and saw an improvement in student health and well-being. The students reported better sleep, improved mood, and increased energy levels.

OutcomeThe school saw an improvement in student health and well-being, and the students reported better sleep, improved mood, and increased energy levels.

Common mistakes

2 traps
Using LED Lights Without Considering the Potential Negative Effects
Using LED lights without considering the potential negative effects on human health can lead to suppressed mitochondrial function, disrupted sleep patterns, and other health problems.
Not Getting Enough Natural Light
Not getting enough natural light can lead to disrupted circadian rhythms, suppressed immune function, and other health problems.

Origin story

How this framework came to be

The framework is based on research conducted by Dr. Glen Jeffery and his team, which showed that exposure to LED lighting can have negative effects on human health, including suppressing mitochondrial function and disrupting sleep patterns.

Source

Traced to primary
Source · PODCAST
Dr. Glen Jeffery: Using Red Light to Improve Your Health & the Harmful Effects of LEDs
Andrew Huberman · 2025
Open source →