Most healthy adults should start routine heart screenings at age 20, with the frequency depending on your results and risk factors. Blood pressure should be checked at least once a year, cholesterol every four to six years, and blood sugar every three years. But those are just baselines for people with no known risk. If you have a family history of heart disease, diabetes, or certain pregnancy complications, the timeline moves up and the checks happen more often.
Routine Screenings for Healthy Adults
The American Heart Association recommends three core screenings as part of regular heart health monitoring. Blood pressure is the most frequent: it should be checked at every healthcare visit, or at minimum once a year if your reading is below 120/80. A fasting cholesterol panel, which measures your total cholesterol, HDL, LDL, and triglycerides, is recommended every four to six years for adults at normal risk. Blood sugar testing should happen at least every three years, with annual testing recommended for everyone starting at age 45.
These intervals assume your numbers come back in the normal range. If any result is borderline or elevated, your doctor will likely want to recheck sooner. A blood pressure reading of 120 to 129 over less than 80 is considered elevated, while 130/80 or higher qualifies as Stage 1 hypertension under current guidelines. Those categories matter because they determine not just how often you’re monitored but whether medication or lifestyle changes get recommended.
Risk Scores That Shape Your Next Steps
Starting at age 40, doctors can calculate your 10-year risk of a cardiovascular event using factors like age, cholesterol, blood pressure, smoking status, and diabetes. The result places you in one of four categories: low (under 5%), borderline (5 to 7.5%), intermediate (7.5 to 20%), or high (20% or above). People in the high-risk category are recommended for cholesterol-lowering medication in addition to lifestyle changes. Those in the borderline or intermediate range undergo a closer look at additional risk factors before a decision is made.
This is also where a coronary artery calcium (CAC) scan can come into play. This imaging test measures calcium deposits in the arteries that supply your heart, giving a direct snapshot of early plaque buildup. Current guidelines recommend it for people aged 40 and older who fall into that borderline-to-intermediate risk zone and need more information to decide on treatment. A score of zero often means medication can be safely delayed. A score of 100 or above is a strong signal to start statin therapy. Importantly, this scan is not useful if you already have symptoms like chest pain, or if you’ve already been diagnosed with heart disease.
Who Needs Earlier or More Frequent Checks
Several groups should be screened more aggressively than the general population.
People with type 2 diabetes face a significantly higher risk of heart disease, and some guidelines recommend annual cardiovascular screening tests even when no symptoms are present. This typically includes monitoring blood pressure, cholesterol, and markers of vascular health at every visit rather than on multi-year intervals.
Women with a history of preeclampsia, a pregnancy complication involving high blood pressure, are now recognized as a higher-risk group. The American Heart Association includes preeclampsia history in its cardiovascular risk evaluation framework. If you had preeclampsia, routine assessments of blood pressure, cholesterol, and blood sugar should continue well beyond the postpartum period. Women who experienced severe or recurrent preeclampsia may also benefit from heart imaging if they develop symptoms like shortness of breath or reduced exercise tolerance.
A strong family history of premature heart disease, meaning a first-degree relative who had a heart attack before age 55 (for men) or 65 (for women), is another reason to start screening earlier and repeat it more often. This history is one of the “risk-enhancing factors” that can push someone from a borderline risk category into one where treatment is recommended.
Symptoms That Call for an Immediate Check
Routine screening is for people who feel fine. If you’re experiencing certain symptoms, waiting for your next annual visit is the wrong move. Three symptoms in particular warrant emergency evaluation: chest pain, shortness of breath, and fainting.
Chest discomfort from a narrowed artery often feels like pressure or tightness, sometimes described as someone standing on your chest. It can show up during physical activity and ease with rest, or it can come on suddenly and persist. Shortness of breath during activities that previously felt manageable is another warning sign. When the heart can’t pump enough blood to meet your body’s needs, you fatigue faster and may struggle to catch your breath during routine exertion.
Dizziness, lightheadedness, and episodes of nearly blacking out can signal an irregular heart rhythm or a weakened heart muscle. These symptoms sometimes develop gradually, making them easy to dismiss. They shouldn’t be. Heart valve problems, rhythm disorders, and cardiomyopathy (a condition where the heart muscle thickens or weakens over time) can all start with vague symptoms that only worsen later.
Some heart conditions are present from birth but don’t produce symptoms until adulthood. If you notice you tire far more easily during exercise than seems reasonable, or you become extremely short of breath with modest activity, it’s worth getting checked even if you’ve never had a heart problem diagnosed.
Screening Before Starting a New Exercise Routine
If you’re planning to take up running, join a gym, or begin any vigorous exercise program, a pre-participation screening makes sense, especially if you’re over 40 or have been sedentary. The American Heart Association and American College of Sports Medicine developed a questionnaire covering nine cardiac history items and three symptom-based items. The key questions ask whether you’ve ever had heart surgery, a pacemaker, valve disease, or a heart attack, and whether you currently experience chest discomfort with exertion, unusual breathlessness, or fainting.
Answering yes to any of those doesn’t necessarily mean you can’t exercise. It means you should have a provider evaluate your heart before you start pushing it harder.
What Wearable Devices Can and Can’t Tell You
Smartwatches and fitness trackers can now detect irregular heart rhythms using optical sensors on your wrist. In the Apple Heart Study, irregular pulse notifications went out to 0.52% of participants, and 84% of those notifications correctly identified atrial fibrillation. A similar study using Huawei devices flagged 0.2% of users, with a 91.6% accuracy rate for confirmed atrial fibrillation.
These numbers mean that if your watch flags an irregular rhythm, it’s worth taking seriously and bringing to a doctor. But wearables are screening tools, not diagnostic ones. They’re best at catching intermittent atrial fibrillation, which can come and go and might never be picked up during a brief office visit. They’re less reliable for other types of heart conditions. A normal reading on your watch doesn’t replace a proper cardiovascular screening, and an abnormal one needs confirmation with medical-grade equipment.
Aspirin for Prevention: Updated Guidelines
Daily low-dose aspirin was once widely recommended for heart protection, but guidelines have shifted significantly. For adults 60 and older who have never had a heart attack or stroke, the current recommendation is not to start aspirin for prevention. The bleeding risks outweigh the benefits.
For adults aged 40 to 59 with a 10-year cardiovascular risk of 10% or higher, aspirin is no longer automatic either. It’s now a shared decision between you and your doctor, weighing your specific bleeding risk against a modest preventive benefit. For those already taking aspirin, evidence suggests considering stopping around age 75. If you’ve been taking daily aspirin on your own based on older advice, it’s a good idea to revisit that decision with a provider.