Talking to women about birth can be polarizing.

Every time you have a carrot instead of a cookie, every time you go to the gym instead of going to the movies, that's a costly investment in your health. But how much you want to invest is going to depend on how much longer you expect to live in the future, even if you don't make those investments.

Even if you are planning a birth with an epidural, the evidence suggests that a doula can help make things go much more smoothly.

I've always loved doing research. I remember doing a research project on the Babylonian numeral system in the eighth grade and thinking, 'This is pretty awesome - is this really a job you can have?' This led me toward a career as an academic, although it took me until college to realise that economics was the right field.

I am more rich in goods than I am in money.

Well, you know, I love being an entrepreneur and when I did 'Celebrity Apprentice' with Mr. Trump, he taught us a lot about starting businesses.

Women are so - maybe this is just a male perspective, but for my money, they're so connected to life in a way that men aren't. They're able to give birth, have children, and it's literally a part of them. They perhaps have a stronger capacity for caring than males.

I spent money, I slept with women around the league, but I always kept my mind on the game.