This was not a smooth process. The rise of executive power sometimes hurt important interests and always rubbed against the republican sensibilities that Americans inherited from the founders. From time to time, Congress reaped political benefits from thwarting the president. But today Congress reacts rather than leads.
Heart problems. Some heart conditions that can lead to low blood pressure include extremely low heart rate (bradycardia), heart valve problems, heart attack and heart failure. These conditions may cause low blood pressure because they prevent your body from being able to circulate enough blood. 1  Endocrine problems.
Underlying causes of low blood pressure Low blood pressure can occur with: Prolonged bed rest; Pregnancy During the first 24 weeks of pregnancy, itâs common for blood pressure to drop. Decreases in blood volume A decrease in blood volume can also cause blood pressure to drop.