This is the Guardian. A certain tech

billionaire is finally putting chips into people's brains.

Elon Musk is saying his Neurrelink company has successfully implanted one of its wireless

brain chips in a human for the first time.

A new research suggests Alzheimer's can be transmitted via rare medical accidents.

Plus, our Prime Minister's dietary habits have gone viral.

That's an important discipline for me, but it means that I can then indulge myself in all the sugary treats that I like for the rest of the week, which I tend to enjoy.

So today, we're rounding up some of the science stories that have caught our attention this week.

I'm the Guardian Science Editor Ian Sample and this is Science Weekly. I'm joined by Hanna-lin's science correspondent at The Guardian.

Hannah, first of all, let's talk about the news earlier this week that

Elon Musk's Neurlink has implanted a chip into a human for the first time.

Remind us what Neurlink is.

Yeah, so Neurrink is Eilum Musk's brain computer interface company.

And the broad idea is that you're using an implant in the brain to read out the signals

and translate them into either a movement or into kind of reading out, you know, human language even.

And this is a rapidly advancing field.

We've seen some really big papers published by here from the sort of more academic side on showing

the types of information you're now able to extract from the human brain, being able to read out

people's thoughts essentially.

And then on the clinical side we've also seen a series of trials coming through

looking at using brain signals to control limb movement,

to give movement back to people who have been paralyzed and

...