Three types of "noise" that can cure insomnia? Scientists confirm: White noise improves sleep quality by 38%.

Are you also awakened by car horns in the early morning? According to data from the World Health Organization, 25% of urban dwellers are troubled by environmental noise. But there is a "special noise" that is becoming a sleep savior-white noise.

What is white noise?

Just as white light mixes with all colors of light, white noise contains all frequencies audible to the human ear (20~20000Hz), forming a uniform and stable sound wave. Common everyday sounds like the hum of an electric fan, the operation of an air conditioner, and even the static on a television are all natural white noise.

How to choose from the 3 most popular "color" noise options?

• White noise : Like the sound of an untuned radio, suitable for blocking high-frequency noise (such as voices).

• Pink noise : Similar to drizzle or ocean waves, with a more prominent low frequency; 80% of users report it "helps with sleep".

• Brown noise : Like distant thunder, a deep, vibrating sensation, suitable for those with severe insomnia.

Three major benefits of scientific evidence

Falling asleep 38% faster : A New York University study shows that white noise can shorten the time it takes to fall asleep, especially beneficial for residents living near streets.

Focus Enhancement : Background noise in the office can reduce distractions for people with ADHD, increasing learning efficiency by 22%.

Newborn soothing : 80% of infants fall asleep within 5 minutes in a white noise environment (simulating the womb environment).

⚠️ Safety Usage Guidelines

• Volume ≤ 50 decibels (approximately the sound of an air conditioner running at low fan speed)

• Keep the music at least 30 cm away from the head of the bed and avoid playing it all night.

• Recommended App: Tide/Noisli (including natural scene blending function)

Try this tonight: use rain sounds and white noise for one hour to "block out" distractions and easily fall into deep sleep! What's your favorite sleep-inducing sound? Share in the comments!

(Data source: Sleep Foundation/Weill Cornell Medical College research)