Blue light blocking glasses are designed to filter out the blue light that’s commonly emitted by electronic devices such as smartphones, tablets, computers, and televisions.

Blue light is known to suppress the production of the hormone melatonin more than any other type of light. Melatonin is a hormone that your body produces in the evening when it gets dark. It helps regulate your sleep-wake cycle (circadian rhythm), telling your body that it’s time to sleep.

Using digital devices, especially in the evening or at night, exposes you to blue light that can trick your brain into thinking it’s still daytime. This can interfere with your body’s natural preparation for sleep by inhibiting melatonin production, making it harder to fall asleep, and disrupting the quality of your sleep.

By blocking or reducing blue light exposure, especially in the evening, these glasses can help your body follow its natural circadian rhythm, potentially improving your ability to fall asleep and the quality of your sleep. However, the effectiveness of these glasses can vary between individuals, and more research is needed to fully establish their benefits.

It’s also worth noting that good sleep hygiene practices should be considered alongside the use of blue light blocking glasses. These include maintaining a regular sleep schedule, limiting caffeine and heavy meals before bedtime, and creating a restful environment in your bedroom. Also, consider turning off electronic devices or using night mode settings that reduce blue light exposure a few hours before bedtime.

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