ALS took this California man's voice. A brain implant helped him speak to his daughter again
At the darkest point of his life, Casey Harrell found a kind of magic.
It was the summer of 2023, and Harrell, then 45 and living in Oakland, was battling amyotrophic lateral sclerosis, or ALS. The neurodegenerative disease eats away at a person’s mu... [17425 chars]