Here’s a clear, accurate breakdown of normal blood pressure by age:
🫀 Blood Pressure Basics
Blood pressure (BP) is measured in mmHg and written as:
Systolic / Diastolic
- Systolic (top number): Pressure when the heart beats
- Diastolic (bottom number): Pressure when the heart rests
Example: 120/80 mmHg
✅ Normal Blood Pressure for Adults (18+)
For adults, normal BP is the same regardless of age:
- Normal: Less than 120 / 80
- Elevated: 120–129 / less than 80
- High (Stage 1): 130–139 / 80–89
- High (Stage 2): 140+ / 90+
- Hypertensive crisis: 180+ / 120+ (seek emergency care)
Even older adults are usually targeted for <130/80, if it can be achieved safely.
👶 Children & Teens
BP depends on age, sex, and height, and doctors use percentile charts. Typical averages:
| Age | Normal BP Range (approx.) |
|---|---|
| Newborn | 60–90 / 20–60 |
| Infant (1–12 mo) | 80–100 / 50–65 |
| Toddler (1–3 yr) | 90–105 / 55–70 |
| Preschool (4–5 yr) | 95–110 / 60–75 |
| School age (6–12 yr) | 100–120 / 60–75 |
| Teen (13–17 yr) | Similar to adult values |
👴 Older Adults (60+)
- Systolic pressure can rise slightly due to stiff arteries
- Doctors sometimes allow slightly higher systolic (up to 140) in frail patients
- Targets are individualized based on health and medication tolerance
⚠️ Factors That Affect Blood Pressure
- Stress, caffeine, pain, or anxiety
- Sitting vs. standing
- Recent exercise
Tip: Always measure after 5 minutes of rest, arm at heart level, and no caffeine 30 minutes prior.
If you want, I can make a simple table of “normal BP by age and category” that’s easy to reference at home.
Do you want me to do that?
