3. Children and teens blood pressure
Blood pressure in children and adolescents is influenced by age, height, and gender. Pediatric blood pressure assessment uses percentiles based on these factors rather than fixed thresholds. Readings above the 90th percentile may indicate elevated blood pressure for the child’s age and size.
Normal systolic blood pressure ranges increase from about 60–90 mm Hg in newborns to approximately 112–128 mm Hg in adolescents. Diastolic pressure follows a similar upward trend. Blood pressure is measured during routine pediatric visits to detect early signs of hypertension, which can be linked to obesity, kidney issues, or heart conditions.
Hypertension in youth is concerning because it often persists into adulthood and increases the risk of cardiovascular disease later in life. Early lifestyle interventions and medical management can help control elevated blood pressure in this age group.
4. Adult blood pressure by age and gender
Adult blood pressure averages vary by age and gender. Younger men typically have slightly higher systolic blood pressure than women of the same age, but this difference narrows or reverses in older age groups.
Typical averages include:
- Ages 18–39: Women average 110/68 mm Hg; men average 119/70 mm Hg
- Ages 40–59: Women average 122/74 mm Hg; men average 124/77 mm Hg
- 60 and older: Women average 139/68 mm Hg; men average 133/69 mm Hg
The increase in systolic pressure with age is more pronounced in women, particularly after menopause due to hormonal changes. Diastolic pressure tends to remain stable or slightly decrease in older adults.
5. How aging affects blood pressure
As people age, several physiological changes contribute to higher blood pressure, especially systolic hypertension. Key factors include:
- Arterial stiffness: Aging reduces the elasticity of large arteries like the aorta, making it harder for them to expand with each heartbeat. This stiffness raises systolic pressure.
- Plaque accumulation: Fatty deposits within arteries narrow the vessel lumen, increasing resistance to blood flow and elevating pressure.
- Kidney function and hormonal changes: Aging can impair the kidneys’ ability to regulate sodium and water balance, leading to fluid retention and increased blood volume. Hormonal shifts also affect vascular tone and fluid regulation.
These changes mean that adults over 60 often have isolated systolic hypertension, where systolic pressure is elevated but diastolic remains normal or low. This condition is a significant risk factor for cardiovascular events and requires appropriate management.
