Neuralink, Elon Musk's brain implant startup, approved for human testing by FDA.

Elon Musk's Neuralink has received FDA approval to launch its first-in-human clinical study for a brain implant that could treat conditions such as paralysis and blindness. The company had faced federal probes and criticism from lawmakers over its animal testing practices. Neuralink is developing a brain implant that could help paralyzed people walk again and cure other neurological ailments. The FDA approval is an important first step for the company's technology to help many people.