A healthy heart comes down to a handful of consistent habits: staying active, eating well, sleeping enough, managing stress, and keeping a few key numbers in check. None of these require extreme effort, but together they dramatically lower your risk of heart disease, the leading cause of death in the United States. Here’s what actually matters and how to put it into practice.
Move for 150 Minutes a Week
The baseline recommendation for adults is 150 minutes of moderate-intensity aerobic activity per week. That’s 30 minutes a day, five days a week, of something like brisk walking, cycling, or swimming. If you prefer higher-intensity exercise like running or vigorous cycling, 75 minutes a week achieves the same benefit. You can also mix moderate and vigorous activity throughout the week.
On top of cardio, you need at least two days of strength training that works all major muscle groups: legs, hips, back, core, chest, shoulders, and arms. This doesn’t have to mean a gym membership. Bodyweight exercises, resistance bands, or carrying heavy groceries all count. Strength training supports heart health indirectly by improving insulin sensitivity, lowering blood pressure, and helping maintain a healthy weight.
If 150 minutes feels like a lot, start smaller. Even short bouts of activity throughout the day add up, and any movement is better than none.
Eat More Plants, Less Sodium
The eating pattern most consistently linked to heart health is the DASH plan, originally designed to lower blood pressure. For a standard 2,000-calorie day, it recommends 4 to 5 servings each of vegetables and fruits, 6 to 8 servings of whole grains, and no more than 6 servings of lean meat, poultry, or fish. The emphasis is on fiber, potassium, and healthy fats while keeping saturated fat and added sugars low.
Sodium is one of the biggest dietary levers for blood pressure. The federal recommendation is less than 2,300 milligrams per day for adults, roughly one teaspoon of table salt. Most people consume well above that, largely from processed and restaurant foods rather than the salt shaker. Reading labels, cooking at home more often, and choosing fresh or frozen vegetables over canned versions are simple ways to cut back.
Omega-3 fatty acids, found in oily fish like salmon, mackerel, and sardines, support heart health by helping manage triglyceride levels and reducing inflammation. The FDA caps dietary supplement labels at 2 grams of EPA plus DHA per day. For most people, eating fatty fish twice a week is a reliable way to get enough without supplements.
Know Your Numbers
Two sets of numbers give you the clearest picture of your cardiovascular risk: blood pressure and cholesterol.
Blood Pressure
Normal blood pressure is below 120/80. Once your top number sits between 120 and 129 (with the bottom number still under 80), you’re in the “elevated” category, a warning zone where lifestyle changes alone can often bring it back down. Stage 1 hypertension starts at 130/80, and Stage 2 begins at 140/90. Readings above 180/120 are considered a medical emergency. Getting your blood pressure checked regularly, even at a pharmacy kiosk, helps you catch changes early.
Cholesterol
For adults 20 and older, the healthy targets are total cholesterol below 200 mg/dL, LDL (the harmful type) below 100 mg/dL, and HDL (the protective type) at 60 mg/dL or higher. LDL is the number that matters most for predicting plaque buildup in your arteries. Regular blood work, typically every four to six years for low-risk adults, keeps you informed.
Sleep 7 to 9 Hours Per Night
Sleep is one of the American Heart Association’s “Life’s Essential 8” metrics for cardiovascular health, and poor sleep raises heart disease risk through several pathways at once. When you consistently fall short on sleep, your body ramps up its stress response: heart rate and blood pressure stay elevated, blood flow to the heart decreases, and cortisol levels rise. Over time, this drives chronic inflammation and calcium buildup in the arteries.
Sleep disorders compound the problem. Obstructive sleep apnea, where breathing repeatedly stops during the night, triggers drops in oxygen levels that damage blood vessel walls, increase insulin resistance, and raise the risk of atrial fibrillation (an irregular heartbeat). Even insomnia, without any airway obstruction, is linked to cardiovascular risk through sustained nervous system activation and hormonal disruption. If you snore loudly, wake up gasping, or never feel rested despite enough hours in bed, a sleep evaluation is worth pursuing.
Good sleep habits make a real difference: keeping a consistent bedtime, limiting screens before bed, and keeping your bedroom cool and dark all help you fall asleep faster and stay asleep longer.
Manage Chronic Stress
Short bursts of stress are normal. Chronic stress, the kind that grinds on for weeks or months from work pressure, financial strain, or relationship conflict, is the type that damages your heart. Prolonged stress keeps heart rate and blood pressure elevated, raises cortisol, and promotes calcium deposits in the coronary arteries. Over time, this chain of events contributes to metabolic disease and heart disease.
Depression, anxiety, and PTSD carry similar physiological effects. People experiencing these conditions over long periods show increased cardiac reactivity, reduced blood flow to the heart, and chronic inflammation. Addressing mental health isn’t separate from heart health; it’s part of the same picture. Regular physical activity, strong social connections, adequate sleep, and professional support when needed all help break the cycle.
Quit Smoking
Smoking is one of the most potent risk factors for heart disease, and quitting produces measurable results fast. Your risk of coronary heart disease drops sharply within one to two years of stopping, then continues to decline more gradually over the following decade. The damage isn’t permanent as long as you quit, and the earlier you do it, the more recovery time your cardiovascular system gets.
This applies to all forms of tobacco. If you’ve tried quitting before and relapsed, that’s common. Most successful quitters have made multiple attempts before it sticks.
Be Careful With Alcohol
The relationship between alcohol and heart health is more complicated than the old “a glass of red wine is good for you” advice suggested. Drinking at or below the limits in the current Dietary Guidelines (up to 2 drinks per day for men, up to 1 for women) may offer some modest reduction in coronary artery disease risk. But heavy or binge drinking clearly raises cardiovascular risk, along with the risk of stroke, heart failure, and cardiomyopathy.
The World Health Organization takes a stricter position, stating that no level of alcohol consumption is safe for overall health. If you don’t currently drink, there’s no cardiovascular reason to start. If you do drink, staying within those daily limits is the most protective approach.
Putting It Together
Heart health isn’t built on any single habit. It’s the combination of regular movement, a plant-heavy diet low in sodium, enough quality sleep, managed stress, and avoiding tobacco that makes the difference. You don’t need to overhaul everything at once. Pick the area where you’re furthest from the target and start there. Small, sustained changes in blood pressure, cholesterol, fitness, and sleep quality compound over years into significantly lower cardiovascular risk.