Orthostatic hypotension: why a blood pressure drop when you stand up matters more than people think

Orthostatic hypotension — a drop in blood pressure of a defined threshold (commonly 20 mmHg systolic or 10 mmHg diastolic) within a few minutes of standing — becomes more common with age, certain medications (particularly some blood pressure drugs, diuretics, and some antidepressants), and conditions like diabetes and Parkinson's disease that affect autonomic nervous system function. It's often brushed off as a minor annoyance, but epidemiological studies have linked it to elevated fall risk and, in some cohorts, elevated cardiovascular mortality independent of the underlying causes.

The mechanism connecting it to falls is straightforward — a transient drop in cerebral blood flow on standing produces lightheadedness or brief loss of balance, and in older adults this is a documented, specific contributor to fall-related injury, distinct from general balance decline.

It's diagnosed with a simple orthostatic vital signs check — blood pressure and heart rate measured lying down, then again at one and three minutes after standing — that most primary care visits can perform but don't always include unless specifically requested. For anyone experiencing dizziness on standing, particularly if on multiple medications, asking specifically for this check is a reasonable step rather than assuming it's a normal part of aging to tolerate.