Low light can affect much more than your eyes. This guide explains what low light in a home office does to posture, focus, screen comfort, and productivity. A dim workspace may make you lean forward, strain your neck, feel sleepy, or struggle with screen contrast. It can also make video calls look darker and less professional. The best solution is layered lighting: natural light where possible, a good desk lamp for tasks, and soft background lighting to reduce glare. A brighter, balanced office feels more comfortable and easier to work in.