For those with chronic illnesses or degenerative diseases, there seems to be more treatment options available than ever before. But with so much conflicting information about what works and what doesn't, desperate people are wasting thousands of dollars and their own time trying to find a cure.
Mating of the Vogelkop bowerbirds.
Witness some of our planet's most disastrous and deadly natural catastrophes that can happen right on your own doorstep.
Gordon Buchanan goes to meet the world's cutest animals to find out why humans have such a strong emotional response to them and reveal their hidden biology. Behind every feature humans find so appealing lies a secret survival strategy.
David Attenborough reveals nature's most amazing animals. A look at the tusk of the narwhal and the spiral shells found on snails and ammonites.
Charting some of the most extreme weather from all around the globe, from freak tornadoes appearing out of nowhere, to pounding storms with hailstones the size of footballs.
A look at the latest scientific research on obesity. A combination of fast-food culture and genes have led to expanding waistlines, but Chris Bavin reveals how small changes can help maximise the chances of keeping trim.
Michael Mosley and a team of doctors investigate the latest health headlines. Michael sets off an ambitious study on the health benefits of omega-3 fish oils, while Dr Chris van Tulleken puts omega-3 supplements to the test.
How the cameramen filmed underwater.
Science documentary series tackling everyday issues that affect us all.