The latest research into the link between germs and mental illness -- and what we all need to know.
Diane talks with Elizabeth Doyle, the founder of Yankee Clippers, an unusual horticultural service that specializes in hand-pruning trees, shrubs, vines, and evergreens.
- Elizabeth Doyle founder of Yankee Clippers
- Adrian Higgins gardening editor for the "Washington Post"
- Tom Tyler extension agent for Arlington County, Virginia, and author of "The Indiana Gardener's Guide"
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