Meet Sarah.

Hi there.

Sarah's pranged her car miles from home.

And she's not sure if her insurance covers getting back.

Thankfully, Aviva can help solve this car insurance conundrum.

If you've had an accident and your car's not safe to drive, we'll get you safely home.

You'll have your feet up in no time, Sarah.

Thank goodness.

Helping solve your car insurance puzzles, it takes Aviva. Get a quote today at aviva.com.uk.

Onward travel arrangements on comprehensive cover. Geographical restrictions apply.

The Telegraph. Podcasts.

Plasma has a nickname. It's called Liquid Gold.

I compared the price of plasma to the price of gold, and it was much more expensive.

Douglas Starr wrote the book on Blood.

Blood is something that just goes to the heart of us and who we are and how we think. And I can't think of any other part of the human body that carry such resonance.

He tells me how this natural life force came to be such a precious material.

The story begins in ancient times with a mystical reputation.

Blood was sacred to the Egyptians, to the Romans.

The Greeks saw it as one of the four humors,

and it was thought to ebb and flow through the body

and maintain the balance of everything.

And that's why when people were sick,

...