Try adjusting your desk lighting to improve focus and sleep. Here's why it works: bright daylight-spectrum bulbs help your body's internal clock stay on track, while warm evening light tells your brain it's time to wind down.
Do this: Use cool white bulbs (5000K) at your workspace until mid-afternoon. Switch to warmer-toned lamps (2700K) by 4 PM. Turn on night mode for screens two hours before bedtime. (1/2)