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I'm Natalia Melman Petruzella and from the BBC.
This is Extreme Peak Danger, the most.
Beautiful mountain in the world.
If you die on the mountain, you stay on the mountain.
This is the story of what happened when 11 climbers died on one of the world's deadliest mountains, K2, and of the risks we'll take to feel truly alive.
If I tell all the details, you won't believe it anymore.
Extreme Peak Danger.
Listen wherever you get your podcasts.
Hello, I'm Lucy Hawkings from the BBC World Service.
This is the global story.
For thousands of years, people have dreamt of and searched for the Fountain of Youth.
It may have alluded the ancient Greeks and 16th century Spanish explorers.
And in the 20th century, the idea of turning back the clock might have been resigned to science fiction.
In recent years, though, scientists have slowly but surely been understanding more about how our bodies age at a cellular level.
And there's increasing evidence that some drugs might be able to reverse that process, giving humans longer and healthier lives than ever before.
What's more, you might already know people taking some of these drugs.
So could we really drink from the Fountain of Youth in our lifetime?
With me today, hopefully not to crush all of our dreams, is Dr.
Andrew Steele, a scientist, campaigner and author of the book the New Science of Getting Older Without Getting Old.