'Runner's High' Is More Than Endorphins
Sumber : http://www.sciencedaily.com/videos/e08cc3d4d604d9854fdd0b9021c0388a.htm
Sumber : http://www.sciencedaily.com/videos/e08cc3d4d604d9854fdd0b9021c0388a.htm
Sumber : http://www.sciencedaily.com/videos/e08cc3d4d604d9854fdd0b9021c0388a.htm
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