Science

BEACON40® is a light therapy device designed to deliver flickering light at the gamma frequency of 40Hz—a rhythm naturally present in the healthy brain during memoryformation,focused attention, andrestorative sleep. Gamma activity tends to decline with age, stress, and cognitive overload, which can contribute to mental fatigue, brain fog, and disrupted sleep. Research from institutions such as MIT and Boston University suggests that external 40Hz sensory stimulation may entrain neural activity, support synaptic function, and aid in the clearance of amyloid-beta (Aβ), a protein linked to neurodegenerative disease. Notably, sleep and Aβ influence each other in a bidirectional relationship: deep sleep promotes the clearance of Aβ, and lowering Aβ may help restore healthy sleep architecture. BEACON40® offers a non-invasive, passive approach to gamma stimulation that integrates seamlessly into everyday life. The following third-party evaluation explores its real-world impact.