the executive power of the federal government is vested in the president. the president has the power to appoint ambassadors, members of the Cabinet, Justices of the Supreme Court and Judges of the lower Federal Courts.
Image: Film Magic/Film Magic/Getty. Stress is the most common cause of irregular periods. Cortisol, the stress hormone, has a direct impact on how much estrogen and progesterone, two sex hormones, gets produced by the body. If you have too much cortisol in your bloodstream, the time and flow of your cycle could change.
1 Think about common causes-If you are not considering the possibility of pregnancy, but it is your first time to have a delay in your menstrual period, think about other possible causes, such as extreme stress, exercise, or weight changes that may contribute to your problem.he most common cause of missed periods due to medications is the use of contraceptives. Oral contraceptives or birth control pills like Yaz, Seasonale, or Lybrel can affect the regularity of a woman's period and lead to missed periods or irregular menstrual flow.