OXYTOCIN AND MILK EJECTION. By Table of Contents INTRODUCTION THE LET-DOWN REFLEX THE NEUROENDOCRINOLOGY OF OXYTOCIN SYNTHESIS AND RELEASE Effects of emotional input on oxytocin release.
Effects of opioids on oxytocin release. INTERACTION OF OXYTOCIN WITH MYOEPITHELIAL CELLS Additional information on milk secretion. Myth of 8 hr Sleep. Image copyright Other We often worry about lying awake in the middle of the night - but it could be good for you.
A growing body of evidence from both science and history suggests that the eight-hour sleep may be unnatural. In the early 1990s, psychiatrist Thomas Wehr conducted an experiment in which a group of people were plunged into darkness for 14 hours every day for a month. It took some time for their sleep to regulate but by the fourth week the subjects had settled into a very distinct sleeping pattern.
They slept first for four hours, then woke for one or two hours before falling into a second four-hour sleep. JaneMcGonigal: Games.