First 20 Minutes : Surprising Science Reveals How We Can Exercise Better, Train Smarter, Live Longer, Paperback by Reynolds, Gretchen, ISBN 0142196754, ISBN-13 9780142196755, Used Good Condition, Free shipping in the US

"The New York Times ""Phys Ed"" columnist counsels casual and serious exercisers on the latest understandings about the mental and physical aspects of a fitness program, sharing recommendations for current ""best practices"" for a range of goals."