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).
Some conditions can impair blood vessel health and result in low blood pressure. Examples include infections (sepsis), paralysis (injury or stroke-related) and certain endocrine disorders such as low cortisol levels. Medications are one of the most common reasons for too-low blood pressure.