Hello, I'm Greg Jenna and good news, Your Dead to Me is back for a new series. Here we go. Yes, we'll explore Emperor Nero's notorious reign with Professor Marybeard and Patton Oswald. I would not want my daughter having the remote control, not alone an empire. We'll dissect the decadent life of Philippe Duke-Dor-Leon with Tom Allen. I've often tried to pretend I'm an aristocrat and being very quickly knocked down. And there'll be so much more with comedians like Olga Koch, Mike Wozniak and Rihalina. I'm excited. You're dead to me, the comedy podcast that takes history seriously. Listen first on BBC Sounds. Hello, thank you for listening to this edition of Inside Health. I hope you enjoy it. Coming up today, palm oil. It seems to be popping up in ingredient lists on all sorts of food labels these days.

But when it comes to health, is it a good fat or a bad fat?

Blood pressure, how low should we go?

I talk to the author of a landmark study that looks set to change the way high blood

pressure is treated. And talking of treatment, imagine if you could be cured with an operation

that meant you needn't take any pills at all. Something that is possible if your high blood

pressure is due to an underlying hormone imbalance, a cause that's much more common than previously thought.

What has been astonishing over the last 10 years or so is that con syndrome used to be thought to be rare, 1% or less of all patients.

However, what we've learned over the last 10 years, it is so much common than we used to think.

More on con syndrome later, but first we need to go back to basics.

Blood pressure readings are made up of two numbers, like 120 over 80.

The lower figure 80 is the baseline pressure in your circulation measured in millimeters of mercury.

Forget the units, they don't matter.

Just concentrate on the numbers.

The upper figure, 120, is the peak in pressure that occurs with each beat of the heart, felt as the pulse.

Your blood pressure is said to be raised if readings are consistently 140 over 90

or more in a clinic setting or a bit lower at 135 over 85 or more if you check yours at home

where you're more likely to be relaxed. If you have high blood pressure and are on medication,

then your GP will tweak what you take to try and get your readings below 140 over 90, or below 150 over 90, if you're elderly.

But new research suggests that these thresholds are way too high and that we should be far more aggressive,

aiming for a top number of 120 rather than 140,

a move that could mean millions more people in the UK taking extra medication.

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