Why is it so hard to say sorry? Marjorie Ingall and Susan McCarthy, authors of the book "Sorry, Sorry, Sorry," share the six essential steps to a good apology.

Clint Smith's on his new poetry collection, Black fatherhood and contending with the country's racist legacy.

Philosopher Kieran Setiya on his book, "Life Is Hard," about accepting adversity, sorrow and pain.

Do you ever feel like a fraud at work or in your daily life? That people overestimate your talent or intelligence? We're digging into the imposter phenomenon this hour.

Social scientist and physician Nicholas Christakis on our social evolution, our need for connection and why he is optimistic about human nature and the future.

If we want to make progress, we need to talk honestly about the most painful parts of America's history. So how do we help people reckon with, and not resist, the past?

Will Senator John Fetterman's openness about his depression help remove some of the stigma around mental illness?

How can survivors of the Turkey-Syria earthquake recover after losing so much? And what helps people withstand large-scale trauma like natural disasters?

What drives people to invest so much time, emotion, energy, and money following a sports team, a rock band, or a celebrity? We'll explore the fan mindset.

For many of us, our relationship with a sibling will be the longest we'll ever have. We'll talk about our sibling relationships and how they shape who we are.