Light's Effect. Light is one of the most important external factors that can affect sleep. It does so both directly, by making it difficult for people to fall asleep, and indirectly, by influencing the timing of our internal clock and thereby affecting our preferred time to sleep.
The forewaters are released when the amnion ruptures. This is commonly known as the time when a woman's water breaks. When this occurs during labour at term, it is known as spontaneous rupture of membranes. If the rupture precedes labour at term, however, it is referred to as premature rupture of membranes.
During pregnancy, your baby is surrounded and cushioned by a fluid-filled membranous sac called the amniotic sac. At the beginning of or during labor, your membranes will rupture â also known as your water breaking. If your water breaks at or around the time of your due date and labor doesn't soon begin, it's called premature rupture of membranes (PROM).