Understanding normal blood pressure by age and why it rises with seniors

Blood pressure naturally fluctuates throughout life, often showing a gradual increase as individuals age. This change is primarily attributed to the natural stiffening of blood vessels and the increased effort the heart must exert to pump blood effectively.

While elevated blood pressure in older adults is not always indicative of illness, it does raise the risk of serious health issues such as heart attacks and strokes. Conversely, blood pressure that is too low, typically below 90/60 mmHg, can lead to hypotension, especially if accompanied by symptoms like dizziness or weakness.

For most adults, a blood pressure reading below 120/80 mmHg is considered normal. However, specific ranges vary by age. For instance, adults aged 20-35 typically have readings around 110-116/70-73 mmHg, while those aged 56-65 may see readings around 130-133/77-79 mmHg. After age 65, systolic pressure, in particular, can continue to rise.

Medical professionals define high blood pressure, or hypertension, as a reading of 130/80 mmHg or higher. The increasing rigidity of arteries with age is a key factor, making them less flexible and increasing pressure. Additionally, declining estrogen levels after menopause can affect blood vessel elasticity, contributing to higher blood pressure.