Runner Things #2475
Posted on 15 Apr, 2014
When people exercise aerobically, their bodies can actually make drugs - cannabinoids (the same kind of chemicals as found in marijuana).
Some Other Things You May Like
Books To Fuel Your Run
The Running Trivia Book
1001 Questions from the Sprints to the Marathonby Mark Will Weber
Marathoning for Mortals
A Regular Person's Guide to the Joy of Running or Walking a Half-Marathon or Marathonby John Bingham
Running for Mortals
A Commonsense Plan for Changing Your Life With Runningby John Bingham
The Little Red Book of Running
by Scott Douglas