Professor Sarah Berry

I'm very convinced that that happens.

Just to come back to the numbers for a minute, because I think you've both really emphasized the fact that one single measurement in the doctor's lab is the worst possible way to tell whether or not I have high blood pressure.

But let's say I've done this over an extended period of time.

It's a measurement that you would believe was quite accurate.

What would be a number that would make me feel good that it's sort of low enough?

And how many of us today in the Western world are sort of higher than that range?

Will everyone who has high blood pressure have symptoms and therefore know that something is going wrong?

That does not sound good.

I think I now understand anything that's called the silent killer is something that clearly I don't want to have.

I think we understand now that this can be really serious condition, that also that there's nuance beyond just like one single number and that it's really common.

I'd love to understand what causes the high blood pressure because I assume that my six-year-old daughter probably does not have high blood pressure and that most of the people who come to see you also when they were six years old did not.

So this is something that develops over time.

The only thing I know about is somehow eating lots of salt is supposed to be bad.

I think that's what I grew up being told and being very stressed.

Is that the answer?

What are the key things that are most likely in our modern world to lead to high blood pressure?

What about our gut microbiome?

Sir, I know you've done some research on this.

What have you found?

And Sanjay, is that why you were saying things aren't working in terms of treating high blood pressure?