This is an automated archive made by the Lemmit Bot.

The original was posted on /r/science by /u/mvea on 2024-09-22 14:04:44+00:00.

Original Title: Doctors are worried a combat sport called slap fighting, watched by millions and gaining in popularity, may be causing brain damage. A new study found that more than half of the participants had visible signs of concussion. Many had signs of impaired movement following a hit or had a vacant stare.