Repeated low-intensity impacts, like pulled sparring punches, can cause brain injury, but that's because of the brain hitting against the skull. Explosions can also cause brain injury: (Effects of Low-Level Blast Exposure on the Nervous System: Is There Really a Controversy?) "...Questions have also emerged as to whether pathophysiologically blast-related TBI is different from the type of non-blast TBI (nbTBI) typical of civilian trauma where injury is caused by inertial and rotational forces along with the effects of blunt impact (37, 38). The most direct physical effects of these forces are bleeding, direct tissue damage, and mechanical shear stress along white matter tracts, which in turn leads to activation of a variety of pathophysiological cascades that are associated with further tissue damage (37, 39). Blast injuries by contrast result from a pressure wave generated at a distance and transmitted though air, which may induce stresses in the brain without significant global motions being imparted. Damage to the nervous system is thought to occur through biophysical mechanisms related to the traveling shock wave’s interaction with the brain (40–42), although it has also been suggested that a blast wave striking the body can induce oscillating pressure waves, which can be transmitted through the systemic circulation to the brain (12, 43)..." Loud bass frequencies can vibrate things visibly. If I'm listening to music in the car with loud bass, the rearview mirrors vibrate enough to be blurry, without a subwoofer, just on little factory economy car speakers. It's small impacts compared to boxing or explosives, but what about the cumulative effect with enough time? And with a louder bass amp? Is it not commonly known that bassists are getting brain injuries just because of how weird the bassists already were? Is the SVT making me r-worded or is it not the SVT's fault?