Heart Health by the Numbers: Blood Pressure, Cholesterol, Blood Sugar and More
Knowing your blood pressure, cholesterol, blood sugar and resting heart rate can tell you a lot about your heart health. These numbers help estimate your risk for heart disease and can identify concerns before symptoms develop.
To see how your heart health measures up, tools like the World Heart Federation's heart age calculator can estimate your overall cardiovascular standing based on key statistics. From there, tracking your blood pressure, resting heart rate, cholesterol and blood sugar can help you understand your risk for heart disease and catch potential concerns early.
What Are the Signs of a Healthy Heart?
A healthy heart does more than just pump blood — it powers your energy, endurance and daily well-being.
Key signs of strong cardiovascular health include:
- A healthy body weight and waist size
- A normal resting heart rate
- Blood pressure within a healthy range
- Balanced cholesterol levels
- Normal blood glucose (blood sugar) levels
Even if all your numbers fall within target ranges, continuing routine preventive care with your primary care provider is important for maintaining your long-term heart health.
What is a Healthy Blood Pressure?
Blood pressure measures the force of blood pushing against the walls of your arteries as your heart pumps.
According to the American Heart Association (AHA), healthy adult blood pressure targets include:
- Systolic (top number): Less than 120 mm Hg
- Diastolic (bottom number): Less than 80 mm Hg
Unlike some physical metrics, there’s no separate "normal" blood pressure range for older adults. Healthy targets generally stay consistent throughout adulthood, though your provider may adjust specific goals based on your personal medical history.
Blood Pressure Categories
| Category | Systolic (top) | Diastolic (bottom) |
|---|---|---|
| Normal | Less than 120 mm Hg | Less than 80 mm Hg |
| Elevated | 120–129 mm Hg | Less than 80 mm Hg |
| Stage 1 High Blood Pressure | 130–139 mm Hg | 80–89 mm Hg |
| Stage 2 High Blood Pressure | 140 mm Hg or higher | 90 mm Hg or higher |
When to Talk with a Doctor About Your Blood Pressure
Schedule a checkup if your blood pressure is consistently above 120/80 mm Hg, or if you develop symptoms like frequent headaches, dizziness or vision changes. If you have risk factors such as diabetes, kidney disease or a family history of heart disease, your doctor may monitor your readings more closely.
What Is a Good Resting Heart Rate?
Your resting heart rate is the number of times your heart beats per minute (bpm) while you’re completely at rest. According to the AHA, a normal resting heart rate for adults is between 60 and 100 beats per minute.
People who are highly active or well-conditioned athletes often have lower resting heart rates (sometimes in the 40s or 50s) because their heart muscle is efficient enough to pump more blood with each beat.
Talk with your doctor if your resting heart rate is consistently above 100 bpm or unusually low and accompanied by symptoms such as dizziness, fatigue or fainting.
Resting heart rates naturally slow down as children grow into adulthood.
Typical Resting Heart Rates by Age
| Age Group | Typical Resting Heart Rate |
|---|---|
| Newborns (0–3 months) | 100–160 bpm |
| Infants (3–12 months) | 100–150 bpm |
| Children (1–10 years) | 70–120 bpm |
| Adolescents & Adults | 60–100 bpm |
What are Healthy Cholesterol Levels?
Your body needs cholesterol to build healthy cells but having too much LDL ("bad") cholesterol causes plaque buildup in your blood vessels, elevating the risk for heart attack and stroke.
In general, healthy adult cholesterol goals include:
- Total Cholesterol: Less than 200 mg/dL
- LDL ("Bad") Cholesterol: Less than 100 mg/dL
- HDL ("Good") Cholesterol: 40 mg/dL or higher for men; 50 mg/dL or higher for women
- Triglycerides: Less than 150 mg/dL
When to Get Screened
The Centers for Disease Control and Prevention (CDC) recommends cholesterol screening for children at least once between ages 9 and 11 and again between ages 17 and 21. Healthy adults should have their cholesterol screened every 4 to 6 years, while individuals with heart disease risk factors may need more frequent testing.
What Is a Normal Glucose Level?
Blood sugar and heart health are closely linked. Over time, elevated glucose levels can damage blood vessels and increase your risk for heart disease and stroke.
According to the CDC, standard diagnostic ranges include:
Fasting Blood Sugar (Snapshot)
- Normal: Less than 100 mg/dL
- Prediabetes: 100–125 mg/dL
- Diabetes: 126 mg/dL or higher
A1C (3-Month Average)
- Normal: Below 5.7%
- Prediabetes: 5.7%–6.4%
- Diabetes: 6.5% or higher
Having diabetes significantly increases the likelihood of developing heart disease, making blood sugar management a critical component of heart care.
Beyond blood chemistry, your body composition is another important part of heart health.
Is BMI a Good Measure of Heart Health?
Body mass index (BMI) estimates whether your weight falls within a healthy range based on your height and weight.
- Underweight: Below 18.5
- Healthy Weight: 18.5–24.9
- Overweight: 25.0–29.9
- Obesity: 30.0 or higher
While BMI can be a useful screening tool, waist size may provide additional insight into cardiovascular risk because excess abdominal fat is more strongly associated with heart disease.
A Better Tool: Waist-to-Height Ratio
Many clinical experts consider waist-to-height ratio a superior predictor of cardiovascular risk because central abdominal (visceral) fat carries higher metabolic risks.
A good rule of thumb for overall health is to keep your waist circumference less than half your height. For example, a person who is 70 inches tall (5'10") should aim for a waist measurement under 35 inches.
Daily Clues: How Your Body Signals Heart Health
Lab numbers tell an important story, but your everyday stamina provides valuable real-time feedback about your cardiovascular health. Paying attention to how you feel day to day can reveal just as much as a checkup. With a healthy heart, you should feel like you have:
- Energy
- No chest discomfort
- Recovery after exercise
- Stamina
Signs Your Heart Needs Medical Attention
Of course, your body can also send up flares that something's wrong. Contact your healthcare provider right away if you notice any of these warning signs:
- A persistently fast or irregular heartbeat (palpitations)
- A sudden, unexplained drop in your exercise tolerance
- Chest pain, pressure, tightness or squeezing
- Dizziness, lightheadedness or fainting spells
- Persistent, unusual fatigue
- Shortness of breath during light activity or while lying down
- Swelling in your feet, ankles or lower legs
Schedule a Heart Checkup Today
Heart disease remains the leading cause of death in the United States, but most risk factors can be managed or prevented through early detection and healthy lifestyle choices.
Heart disease often develops silently, which is why knowing your numbers matters. Regular screenings can identify problems early and help you and your provider create a plan to keep your heart healthy for years to come.
Medically Reviewed By
Hisham Wagdy, FACC, MD
Nuclear Cardiology, Cardiology