Normal blood pressure (BP) for most adults is generally considered to be less than 120 millimeters of mercury (mmHg) systolic and less than 80 mmHg diastolic. This is often represented as 120/80 mmHg or less.
However, it's crucial to understand that "normal" can vary slightly depending on the source and individual factors like age and health conditions. Some sources may define a slightly wider range, extending to 120/80 mmHg. Others might specify a range like 90/60 mmHg to 120/80 mmHg.
Understanding Blood Pressure Readings
Blood pressure is measured as two numbers:
- Systolic Pressure: The top number, representing the pressure in your arteries when your heart beats.
- Diastolic Pressure: The bottom number, representing the pressure in your arteries when your heart rests between beats.
Different Interpretations of Normal Blood Pressure
Several reputable sources provide slightly varying ranges for normal blood pressure:
- Many sources, including the National Institute on Aging and the CDC, define normal blood pressure as less than 120/80 mmHg.
- Some sources like the British Heart Foundation include a slightly broader range of 90/60 mmHg to 120/80 mmHg.
- It's important to note that the definition of "normal" can be context-dependent; for instance, blood pressure norms vary for children and adolescents.
Maintaining Healthy Blood Pressure
Regardless of the exact numerical definition, maintaining a healthy lifestyle is crucial for optimal blood pressure. This includes regular exercise, a balanced diet, weight management, and limiting alcohol and sodium intake. Regular blood pressure checks with your doctor are also essential to monitor your readings and address any potential concerns.
