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.
Some of the causes of low blood pressure include: 1  Getting up after you sit or lie down. 2  This can cause a quick drop in blood pressure called orthostatic hypotension. 3  Standing for a long time. 4  Not drinking enough fluids (dehydration).
Medication. Some types of medication may cause low blood pressure, including the following: 1  beta-blockers â a medicine that may be prescribed for a problem with your heart. 2  angiotensin-converting enzyme (ACE) inhibitors. 3  angiotensin receptor blockers.