Influence exposure to ligh

During the day:

• Expose yourself to bright sunlight in the morning. 
• Spend more time outside during daylight. 
• Let as much natural light into your home or workspace as possible.

At night:

• Avoid bright screens within 1-2 hours of your bedtime.
• Say no to late-night television.
• Don’t read with backlit devices. 
• When it’s time to sleep, make sure the room is dark.
• Keep the lights down if you get up during the night.