Different social context causes different levels of physiological arousal. However, in every condition, the autonomic nervous system went into synch between strangers, whether in low or high states of arousal.
A new study reports performing a simple cognitive task four days after a concussion can help activate brain areas that improve memory function and can guard against the psychological affects of brain injury.
UCSF researchers report maternal stress could impact the development of a child's parasympathetic nervous system, both in utero and after birth. Additionally, children whose mothers were stressed during pregnancy smile less, are less engaged and have a diminished ability to regulate emotions.
A new study links spending time in nature with better health and enhanced functioning of the immune system.