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.
What are the Causes of Early Periods. Early menstrual period reasons happen when hormonal signals are thrown out of sync. Your body produces hormones such as estrogen and progesterone. These hormones are found in the pituitary gland, the hypothalamus and the ovaries. They send signals to one another to trigger menstruation and ovulation.