Ultrasound can do some interesting things, but is unlikely to be a bad actor unless it is being introduced into the body through bone conduction. In air, due to the nonlinear properties of sound conduction, ultrasound dissipates into heat over short distances. In other words, the acoustic waves are damped out due to the viscosity of air.
maybe he means unnatural EMF like ultrasound (not technically EMF but still has risks and long term studies not done) and cell phones
Ultrasound can do some interesting things, but is unlikely to be a bad actor unless it is being introduced into the body through bone conduction. In air, due to the nonlinear properties of sound conduction, ultrasound dissipates into heat over short distances. In other words, the acoustic waves are damped out due to the viscosity of air.
I love my scientificanon
But the FDA said it puts fart pockets inside your cavities 💨
I bet my mom did a ton of ultras I fart all the time
To paraphrase Shakespeare: "Farting is such sweet sorrow."