
Certain frequencies can affect mood and brain activity, but large-scale mind control via sound is unproven. Scientific studies show that sound and frequencies can influence human emotions, focus, and relaxation. For example, binaural beats (two slightly different tones played in each ear) may help with meditation or concentration, while certain frequencies are used in music therapy to reduce stress.
Low-frequency sounds, called infrasound, can cause feelings of unease or discomfort in some people, and high-intensity sounds can affect brain activity. However, there is no proven evidence that sound can be used for mass mind control or to force people to behave in specific ways against their will.

Some conspiracy theories suggest that governments or organizations use hidden sound waves to manipulate populations, but no credible scientific proof supports this idea. While sound can influence mood and perception, the idea of large-scale behavioral control through sound remains unproven and speculative.