The Genius Wave is generally well-tolerated, but some users may experience mild side effects such as headache or dizziness, particularly during the initial stages of use. These effects typically subside with continued use.

https://tenthousandrooms.yale.edu/project/genius-wave-reviews-it-legit-or-does-genius-wave-really-work

https://tenthousandrooms.yale.edu/project/genius-wave-reviews-hype-or-hope-examining-pros-and-cons