A compromised immune system is a poor defense. Building it requires healthy habits: get plenty of sleep and exercise, manage stress and eat well.

Eusebius played a significant role in the doctrinal debates and disputes that troubled the Catholic church during the early fourth century.

Origen blended the truth of the Bible with Greek philosophy and has produced centuries of confusion on the subject of life after death.

What are we to make of the human longing for utopia?

Under the leadership of Moses, the children of Israel make their way to the Promised Land, but their 40-year journey is marked by one episode of faithlessness and rebellion after another.

During the Christmas season, people hear the account of Mary’s role as the mother of Jesus, but little of what is popularly believed about Mary is from the Bible.

Author and early-church historian Paula Fredriksen discusses the life and times of the apostle Paul.

Bouncing back from traumatic stress requires a lot more than a strong will. Understanding why we don’t all respond the same way is a good place to start.

A look back at the fall of the Berlin Wall and Germany’s subsequent reunification in October 1990 offers some fascinating insights into the making of history.

Insight Video: Is it possible to be in politics without becoming tainted by political corruption?

A month after learning he was losing his battle to pancreatic cancer, Randy Pausch gave one last lecture to students and colleagues, hoping to leave a legacy.

Personally taught by the apostle John, Polycarp remained totally faithful to the teaching of the apostles.

As the central figure in Islam, Muhammad was, according to biographer Maxime Rodinson, “one of the rare men who have turned the world upside down.”

Many of the products and industries that today’s society depends on today had their roots in the fertile imagination of the renowned inventor Thomas Edision.

Without question, John Paul II has been one of the most influential leaders of the 20^th century.

Gina Stepp interviews Brandeis University resident scholar Ruth Nemzoff about her latest book, Don’t Roll Your Eyes: Making In-Laws into Family.

Vision discusses three books that examine why and how people hold beliefs about the meaning of life and the existence of God.

Greed is as old as human history. Enough, it seems, is seldom enough.

Vision speaks with Malise Ruthven, a noted authority on Islam, about the events of September 11, 2001.

Will biotechnology change our views on sex and procreation?