
by: Nick Geddes 1 hour ago NickGeddesNews
Kyle Shanahan and the San Francisco 49ers’ coaching staff have spent the majority of the 2025 season working around injuries to their star players. Such has been an occurrence often during Shanahan’s tenure in San Francisco.
This season alone, the 49ers lost defensive end Nick Bosa , linebacker Fred Warner and tight end George Kittle to season-ending injuries. Kittle tore his Achilles in this past Sunday’s NFC Wild Card Round win over the Philadelphia Eagles. The week prior, a theory was born.
The 49ers’ practice facility, which is next door to Levi’s Stadium, also neighbors an electrical substation. Peter Cowan , a self-proclaimed scientist, posted on X that, in his belief, the electrical substation was the reason for San Francisco’s injury outbreaks over the years.
“Chronic ELF exposure is degrading the collagen integrity in the players tendons, ligaments, and muscle-tendon junctions,” Cowan wrote as part of a thread. “The damage is subtle, until a routine cut or block ends in catastrophic rupture. The injury pattern matches the biological fingerprint of prolonged ELF exposure documented in peer-reviewed research.”