A new book confirms what most of us already suspect—timing is everything. In The Book of Times, Lesley Alderman compiled data from hundreds of studies to offer insight into how we spend our time. Some of the most interesting data is her insight into the best times we should do everything. Here are a few example.

  • Best time to exercise: 6 p.m. to 8 p.m. That’s when your body temperature is at its peak, meaning your muscles are more flexible. Plus, muscle strength peaks between 5 p.m. to 9 p.m. and and hand-eye coordination is sharpest in the evening.
  • Best time to solve problems: At 10 a.m., your mind is at its most alert.
  • Best time to avoid stress: Cardiac arrest is most likely to occur at 7 a.m. Not a good time to have a stressful conversation or argument.
  • Best time for surgery: Grab that early appointment: at 8 a.m. Complications are more likely as the day goes on.
  • Best time for the dentist appointment: If you can't stand going to the dentist, make an appointment for the afternoon, when your dental pain threshold is at its highest.

Amazon writes about this book:

In an era when our time feels fractured and imperiled, The Book of Times encourages readers to ponder time used and time spent. How long does it take to find a new mate, digest a hamburger, or compose a symphony? How much time do we spend daydreaming, texting, and getting ready for work? The book challenges our beliefs and urges us to consider how, and why, some things get faster, some things slow down, and some things never change (the need for seven to eight hours of sleep).

Packed with compelling charts, lists, and quizzes, as well as new and intriguing research, The Book of Times is an addictive, browsable, and provocative look at the idea of time from every direction.