Yujiro Yamanaka is Associate Professor, Graduate School of Education, Hokkaido University in Japan. He got his Ph.D. in 2004 from Hokkaido University Graduate School of Medicine. He has been exploring the effect of non-photic time cue, such as physical exercise, meal, psychological stress, on human circadian rhythms in physiology and behavior.
Our bodies may be more vulnerable to evening stress
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- MARCUS AURELIUS