Light therapy

light therapy

Light therapy means using controlled exposure to bright light to influence how your body responds to day and night. It typically involves sitting near a light box or using a special lamp that produces much more light than ordinary indoor bulbs, often for a set time each morning or evening. The goal is to shift or strengthen your internal clock so your sleep, energy, and mood line up better with the day. Light can affect hormones and brain systems that control wakefulness and sleep, so timing and the color of the light (blue-enriched light is particularly effective) matter a lot. Devices also come as dawn simulators that gradually brighten your bedroom to mimic sunrise, which can help people wake up more naturally. Light therapy is commonly used for seasonal mood changes, jet lag, shift work sleep issues, and some types of insomnia. It is noninvasive and can be done at home, but it needs to be used consistently and at the right time to work well. Possible mild side effects include eyestrain, headache, or agitation, and people with certain eye or bipolar conditions should talk with a clinician before starting. When done correctly, it provides a low-risk way to improve sleep quality, daytime alertness, and mental well-being. That practical impact on daily life and health is why light-based treatment is an important tool for many people who struggle with sleep or mood regulation.