The best blue-green paint colors combine the calming qualities of blue with the grounding energy of green. It’s a pairing that works almost anywhere, from walls and cabinets to trimwork and ceilings.

Blue light, emitted from screens, penetrates deep into the retina, posing potential risks such as digital eye strain, retinal damage, circadian rhythm disruption, and myopia progression.

Professor Glen Jeffery (UCL Institute of Ophthalmology) said it was significant that research finding blue light could benefit the sleep of older people because as people age, protein buildup in Why ...