42: The Answer to Almost Everything

Several studies have shown a significant decline in sperm count in the last 50 years. Are we heading towards a sperm crisis?

Why do massive inequalities exist despite a global economy that has produced the most wealth in human history?

Does wealth make you happy? Or maybe true wealth is having nothing at all?

Ex-footballer turned anti-poverty activist Neven Subotić discusses the books that changed his life.

Ronja meets ex-player Kevin Pannewitz, who was kicked out of professional football due to lack of discipline

Are we happier when we live a healthy life? Or does being happy make us healthy?

How should we know which job to choose? And do dream jobs really make us happy? Ronja von Rönne investigates.

A look back at the Jeffrey Epstein's life and how the Epstein Files are exposing corruption at the highest level.

Since 1943, Lebanon has been caught up in the conflicts of its neighbours.

How can we have more fulfilling sex? Ronja von Rönne meets couples and singles who have reinvented their sexuality.

A complex feeling that is both problematic and useful, the latest research on boredom.

They are reclaiming their bodies and freely expressing their sexuality: A focus on sex positive popstars in contemporary culture.

Vanessa Wagner performs Philip Glass’s Piano Etudes with dancers from the Accrorap company.

Bach’s St John Passion from Hamburg’s Elbphilharmonie with the NDR vocal ensemble and Concerto Köln conducted by Klaas Stok.

How can we age well? Ronja von Rönne trys to find out by talking to chimney sweep Norbert Skrobek, who is close to retirement and Monika Gutte who defies age with a zest for life

Paris city hall is pursuing a green traffic policy: Less cars, more bicycles. But not everybody is pleased.

Children and young people look to adults as role models, usually their parents, but they also are influenced by their peers.

Plastic waste at sea is being colonised by bacteria. How will this affect marine ecosystems?

Using the latest technology, researchers are discovering the bright colours of ancient Greek art and architecture.