Our emotional health is intimately related to the proper operations of evolutionarily ancient parts of our brain. How can our sex lives be a window into these critical aspects of our brains? On this episode, Dr. Nan Wise discussed her book, Why Good Sex Matters.

Friendship is an important part of maintaining a healthy mental life, but can it also improve our biological health? On this episode, Lydia Denworth discussed the new science of friendship.

The success of humans as a species is often attributed to the profound increase in brain size. However, does culture have a more important role? On this episode, Gaia Vince discussed her new book, Transcendence.

Aging may seem like an inevitable deterioration of our bodies, but is there a routine way to prevent it? Can exercise help? On this episode, Judy Foreman discussed her book, Exercise is Medicine.

The polar region continues to be a mysterious and unexplored region of the earth. One of the first to explore the area was an expedition led by Adolphus W. Greely. On this episode, Buddy Levy discussed the Greely Polar Expedition.

How can a scientific perspective on the world inform us about non-scientific issues? On this episode, Neil deGrasse Tyson discussed his new book, Letters from an Astrophysicist.

Navigating the medical system can be daunting, but even more so for parents caring for the well-being of their children. On this episode, Dr. Jacqueline Jones discussed the issues of medical parenting.

The development of the planets and the solar system has continued to intrigue scientists. Recent advances in planetary science have broadened our perspective on the issue. On this episode, Dr. Erik Asphaug discussed his book, When the Earth had Two Moons.

Charts and graphical displays of information are essential to the modern age, but they are only as useful if one is prepared to us them. On this episode, Prof. Alberto Cairo discussed his book, How Charts Lie.

What is the possibility of life elsewhere in the universe? How much closer are we to determining this issue? On this episode, Professor Michael Summers discussed the possibility of extraterrestrial life in his book, Imagined Life.