Professor Brian Cox takes a deeper dive into the science of ageing, with two experts returning to answer more of your questions. How do men and women age differently? Why is it healthy to forget things? What’s the latest research on regenerating old cells?

Rethinking sex, artificial wombs and how to up your sperm count
26:58

Decarbonising flying, cleaning up A.I. and the personal cost of climate change
26:07

Cancer vaccines, tumour-killing cells and does fasting work as a treatment?
30:18