The wonder of blood
What part of our body have scientists discovered can heal and help us?
For centuries, people have known that human blood is a remarkable substance. But they never really knew just how complex it was. Modern science is now showing us all the amazing things it does. Rob and Finn talk about how detailed research into blood’s properties has given us all sorts of new ways to heal our bodies and improve the quality of our lives.
This week’s question
If you laid out all the blood vessels in an adult body end to end how long would they be?
a) 30,000 miles
b) 100,000 miles
c) 200,000 miles
Listen to the programme to find out the answer.