If you could dramatically lower your risk of heart disease by knowing just seven numbers, wouldn’t you want to know them?
Heart disease remains the leading cause of death for adults over 50. The good news is that many heart attacks and strokes are preventable.
One of the easiest ways to protect yourself is by keeping track of a handful of important health numbers. These numbers provide a snapshot of your heart health and can help identify problems long before symptoms develop.
Think of them as your heart’s report card.
Let’s review the seven numbers every adult over 50 should know.
1. Blood Pressure
Goal: Less than 120/80 mmHg is ideal for most healthy adults.
Blood pressure measures how hard your heart has to work to pump blood through your arteries.
High blood pressure is often called the “silent killer” because it usually causes no symptoms while quietly damaging your:
- Heart
- Brain
- Kidneys
- Eyes
- Blood vessels
Even mildly elevated blood pressure increases your risk of heart attack and stroke over time.
Fortunately, blood pressure often improves with:
- Regular exercise
- Weight loss
- Limiting sodium
- Eating more fruits and vegetables
- Taking medications when needed
If you’re over 50, have your blood pressure checked regularly—even if you feel perfectly fine.
2. LDL Cholesterol
Goal: Less than 100 mg/dL for most people. Lower if you’re at high risk.
LDL is commonly called the “bad” cholesterol because it contributes to plaque buildup inside your arteries.
As plaque grows, blood flow decreases, increasing the risk of:
- Heart attack
- Stroke
- Peripheral artery disease
Many people have high LDL cholesterol without realizing it.
Healthy eating, regular exercise, weight management, and cholesterol-lowering medications can significantly reduce your risk.
Know your LDL—not just your total cholesterol.
3. HDL Cholesterol
Goal: Above 40 mg/dL for men and above 50 mg/dL for women. Higher is generally better.
HDL is often called the “good” cholesterol.
It helps remove excess cholesterol from your bloodstream and carries it back to the liver for disposal.
While raising HDL alone doesn’t necessarily prevent heart disease, higher levels are generally associated with better cardiovascular health.
The best ways to support healthy HDL levels include:
- Regular exercise
- Not smoking
- Maintaining a healthy weight
- Eating healthy fats like olive oil, nuts, and fish
4. Blood Sugar (Hemoglobin A1c)
Goal: Less than 5.7% for most adults without diabetes.
Hemoglobin A1c reflects your average blood sugar over the past two to three months. Even mildly elevated blood sugar damages blood vessels over time. People with diabetes are two to four times more likely to develop heart disease.
If your A1c falls into the prediabetes range (5.7–6.4%), lifestyle changes can often prevent progression to diabetes.
Exercise and weight loss remain two of the most powerful treatments.
5. Waist Circumference
Goal: Less than 40 inches for men and less than 35 inches for women.
The number on the scale doesn’t tell the whole story.
Carrying excess fat around the abdomen—sometimes called visceral fat—is especially harmful.
This type of fat increases inflammation and raises the risk of:
- High blood pressure
- Diabetes
- High cholesterol
- Heart disease
Simply measuring your waist with a tape measure once every few months provides valuable information.
Sometimes losing just a few inches around the waist dramatically improves overall health.
6. Resting Heart Rate
Goal: Typically between 60 and 80 beats per minute for most adults.
Your resting heart rate reflects how efficiently your heart works. A lower resting heart rate often means your heart is stronger and doesn’t have to work as hard. Many physically active adults have resting heart rates in the 50s.
A consistently elevated resting heart rate may suggest:
- Poor physical fitness
- Stress
- Illness
- Certain medications
- Heart rhythm problems
Improving your aerobic fitness is one of the best ways to lower your resting heart rate naturally.
7. Minutes of Exercise Each Week
Goal: At least 150 minutes of moderate exercise or 75 minutes of vigorous exercise weekly, plus strength training at least twice a week.
This isn’t a laboratory number—but it may be one of the most important numbers on this list.
Regular exercise helps improve nearly every other heart health number:
- Blood pressure
- Cholesterol
- Blood sugar
- Body weight
- Resting heart rate
You don’t have to become a marathon runner. Brisk walking, cycling, swimming, dancing, or gardening all count. Even short 10- to 15-minute sessions throughout the day add up.
Remember, some exercise is always better than none.
Don’t Forget the Trend
One measurement doesn’t tell the whole story.
What’s more important is whether your numbers are moving in the right direction.
For example:
- Blood pressure falling from 150/90 to 130/80 is excellent progress.
- Losing two inches from your waist is meaningful, even if the scale changes only a little.
- Lowering your LDL by 30 or 40 points substantially reduces future heart risk.
- Increasing your weekly exercise from 30 minutes to 120 minutes is a tremendous improvement.
Celebrate progress rather than perfection.
Your Heart Health Checklist
At your next medical visit, make sure you know:
✓ Blood pressure
✓ LDL cholesterol
✓ HDL cholesterol
✓ Hemoglobin A1c
✓ Waist circumference
✓ Resting heart rate
✓ Weekly exercise minutes
Write these numbers down and keep them somewhere you’ll see them. Knowing them today can help you stay healthier tomorrow.
Bottom Line
Your heart works around the clock, beating more than 100,000 times every day. Taking a few minutes to know these seven numbers is one of the simplest and most powerful steps you can take to protect it.
You can’t change your age or your family history, but you can influence many of the factors that determine your heart health. By tracking your numbers, making healthy lifestyle choices, and working with your healthcare provider, you can greatly reduce your risk of heart disease and continue enjoying an active, independent life for years to come.
Your heart doesn’t expect perfection—it simply benefits from steady, consistent care. Start by knowing your numbers, and let them guide you toward a healthier future.
Doctor Mike’s Take
One thing I’ve learned after nearly four decades of practicing internal medicine is this: the patients who did the best weren’t necessarily the ones with perfect numbers—they were the ones who knew their numbers and took action when they started to change.
You don’t have to memorize dozens of lab values. Focus on these seven. They cover most of what determines your cardiovascular risk, and improving even one of them can make a meaningful difference over time.