The Healthline article "Pink Noise vs. Brown Noise, Black Noise, and White Noise for sleep" examines various sound hues and their potential effects on sleep quality. Pink noise, characterized by a balanced mix of high and low frequencies, resembles natural sounds like rainfall or rustling leaves. Some studies suggest that pink noise can reduce brain wave activity, promoting deeper sleep and enhancing memory retention. However, the article notes that more research is needed to confirm these benefits. It also emphasizes that while pink noise may aid sleep, it is not a substitute for good sleep hygiene practices, such as maintaining a consistent sleep schedule and limiting naps. In terms of brain health and cognitive performance, improved sleep facilitated by pink noise could support processes like memory consolidation and cognitive function. To enhance brain health, individuals might consider incorporating pink noise into their sleep environment alongside established sleep hygiene practices. Given Healthline's reputation for providing evidence-based health information, these insights are credible, though further scientific validation is necessary.