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.
1 Dehydration can sometimes cause blood pressure to drop. 2  However, dehydration does not automatically signal low blood pressure. 3  Fever, vomiting, severe diarrhea, overuse of diuretics and strenuous exercise can all lead to dehydration, a potentially serious condition in which your body loses more water than you take in.
Causes of low blood pressure. Low blood pressure (hypotension) has many possible causes, from lifestyle choices, to medication or an underlying health condition.In some cases, it may just be the result of being healthy and active or a tendency you've inherited from your parents.ow blood pressure (hypotension) has many possible causes, from lifestyle choices, to medication or an underlying health condition. In some cases, it may just be the result of being healthy and active or a tendency you've inherited from your parents.