Original sentence: Such factors suppress the activity  of those centers in the brain that stimulate ovaries during the ovarian cycle to secret hormone like estrogen and progesterone as a result low production of this hormone.•    Nervous and emotional: Pyschogenic factors like stress due to exam, excessive excitement due to upcoming event may cause hypomenorrhoea
Edited sentence: Such factors suppress the activity of those centers in the brain that stimulate ovaries during the ovarian cycle to secret hormone like estrogen and progesterone, and may result in low production of this hormone.•    Nervous and emotional: Pyschogenic factors like stress due to exams, or excessive excitement about an upcoming event may cause hypomenorrhoea