HealthDay
Many runners contend that jogging alone offers the opportunity to enjoy nature or appreciate an urban landscape, while giving the brain and the body a beneficial workout.
But new research with rats suggests that running solo might not offer the perceived benefits and, in fact, may actually be bad for runners when combined with social isolation.
孤独はストレスだから。
SOURCES: Elizabeth Gould, Ph.D., professor of psychology, Princeton University, Princeton, N.J.; Bruce S. McEwen, Ph.D., Alfred E. Mirsky professor and head, Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York City; March 12, 2006, online edition, Nature Neuroscience