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.
How does a missed period affect your risk for ovarian cancer? Most of the time missed periods are not a cause for concern. Pregnancy, stress, strenuous exercise, low body fat, or hormonal imbalances can cause menstrual irregularities. In rare cases, irregular periods are a sign of something serious. They may also increase your risk of ovarian cancer.