Elon Musk's brain implant start-up Neuralink has been approved to recruit humans for trials. The trials will focus on patients suffering from paralysis. Musk claims his implants can help the participants walk again. Molly Gambhir tells you more.

Gravitas: Neuralink to kick off first human trials

American pharmaceutical company Pfizer said it has begun human safety testing of a new pill to treat the coronavirus that could be used at the first sign of illness.

Now, a pill to treat coronavirus; Pfizer begins human trials

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