From boosting muscle mass to improving metabolism and skin, there’s now tonnes of claims about what peptides can do on social media. Peptides are short amino acids produced by our bodies naturally, and they aren’t a new concept, they’ve been used in medicine for centuries, Insulin, used to treat diabetes being the most common one.

But the peptide wellness shot craze has led to growing amount of people buying ‘research peptides’ which are unregulated and not approved for human use. BBC’s health and wellbeing reporter, Ruth Clegg tells us all about the grey market of research peptide drugs, the health risks of taking them and why people are opting to become peptide ‘lab-rats’ despite this.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producers: Emily Horler, Benita Barden and Mora Morrison Editor: Verity Wilde

For the first time in more than 50 years, NASA is taking humanity back to the moon with its Artemis II mission. The crew is made up of four astronauts, including the first woman astronaut and the first black astronaut to travel to the moon. They will blast off from the Kennedy Space Center in Florida, in a spacecraft never used by humans before, and begin their journey to orbit around the moon.

The launch is expected to happen on 1 April - but NASA are keeping their options open, and have named six other potential dates. So - when will the launch take place? And once it does, how long will it take the mission to reach the Moon?

The BBC’s science correspondent Georgina Rannard unpacks it all for us — and tells us everything we need to know about this historic mission. And we hear from two members of the Cosmic Girls Foundation - Vanessa from Finland and Ximena from Venezuela - who share their reaction to the mission and their hopes for how it could push the boundaries of science.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producers: William Lee Adams and Chelsea Coates Editor: Verity Wilde

Imagine being able to understand what animals are saying - and potentially even talking back. Animal-to-human communication is a subject which has garnered a lot of attention in recent years. And now artificial intelligence (AI) is turbo charging the conversation.

The BBC’s Caroline Steel chats us through the basics of animal communication, how technological advancements have helped humans understand them, and what the next phase of this could look like. David Gruber from Project CETI also shares his team’s pioneering efforts to understand sperm whales. Plus, vet Haehyun Shin shares how her work would be impacted if she could understand her pet patients.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producers: Mora Morrison and Chelsea Coates Video producer: Tim Hodges Editor: Verity Wilde