Some fibers from the ventral cochlear nucleus cross the midline in the trapezoid body. Thus, cells in the superior olive receive inputs from both ears and are the first place in the central auditory system where binaural processing (stereo hearing) is possible. The output of the superior olive travels in the lateral lemniscus.
Delay caused by a short stress time is usually a week or two, then you ovulate normally. However, under continued stress (heavy exercise, malnutrition, etc.) you can be anovulatory for a very long time. If you are having problems in this area, have a look at this book: Fertility, Cycles & Nutrition 4th Edition.
One cause for having an abnormal early menstrual period is psychological. Although it is not too common for psychological problems to disrupt the normal period cycles, it can happen. Among the psychological problems that can cause problems with a womanâs periods are anxiety, fatigue and stress. When someone is under a lot of stress or anxiety, it can actually change the hormone levels in the body and cause someone to miss a period or start their cycle early. A physical problem that changes the hormone levels in the body will disrupt ovulation, which will cause an early menstrual period.