Boosting your brain and body is the theme of today's show, where I've plucked three of the best guests (different format alert) when they go big-time in depth. Their subjects could be dry, but they are so good and knowledgeable that they make it entertaining. 

I love depth, and that's why I've called it the smartest ways to boost brain and body.

• Dave Asprey on Stem Cells (brain and body)
• Dr Pompa on Water (brain and body)
• Todd White on Alcohol (brain and body)

Enjoy getting the old grey matter working hard.