Ischemic stroke often arrives without warning. The reason lies in what’s happening inside the body long before symptoms appear.
Picture your body’s blood vessels as tiny pipes. They’re in charge of carrying blood to the brain. But elevated cholesterol can clog and shut off that critical flow. While no medication eliminates that risk entirely, a class of drugs known as statins has become one of the most effective tools doctors have to reduce the likelihood of the ischemic stroke, the most common type, especially when paired with healthy daily habits.
High blood pressure and elevated cholesterol are among the leading causes of the nearly 800,000 ischemic strokes that occur in the United States each year. Strokes cause 1 in 6 deaths related to cardiovascular disease and can happen at any age.
Statins work by bringing down the body’s low-density lipoprotein (LDL) — the bad kind of cholesterol — and improving the good kind, known as high-density lipoprotein (HDL). Statins also wipe arteries clean of fatty plaque buildup that can harden, break and obstruct blood and oxygen flow.
“Statins are truly great for preventing stroke and heart disease,” said cardiologist Dr. George McLeod of Novant Health Heart & Vascular Institute in Wilmington. “It’s not just about improving cholesterol metabolism; it’s also about lowering your cardiovascular risk.”
How statins reduce stroke risk
Statins attack a protein or enzyme in the liver responsible for making bad cholesterol. Simply put, the drugs slow down the body’s ability to create the sticky stuff that clogs your arteries.
“Statins are great for decreasing the risk of stroke and preventing complications from coronary artery disease,” McLeod said.
Common statins include atorvastatin (Lipitor), rosuvastatin (Crestor), pravastatin (Pravachol) and simvastatin (Zocor). They are especially helpful for people who have already had a stroke, as well as patients with heart disease, diabetes, high blood pressure or a family history of stroke risk.
Statins do not prevent hemorrhagic stroke, which occurs when a blood vessel bleeds into the brain. While statins are generally safe, they’re not right for everyone; these include pregnant women and people with liver disease.
Think you may benefit from a statin medication? A primary care physician can evaluate if one is right for you. Find one now.
Lifestyle changes that lower stroke risk
While highly effective in eligible patients, statin therapy alone cannot prevent stroke. The drugs work best when paired with healthy lifestyle choices like exercising regularly, eating well and avoiding smoking. Think of statins not as a substitute for lifestyle changes, but as a supplement to keeping fit. Pair them with these lifestyle habits to support your health:
- Adopt a healthier diet. Half of your plate should consist of non-starchy green vegetables, like broccoli or cucumbers; one-fourth should be lean protein; one-fourth should be carbs, like rice or pasta. Swap juice and soda for water.
- Get regular physical activity. Exercise, like a brisk 30-minute walk, can lower blood-glucose levels and reduce the risk of cardiovascular disease. It’s important to just get moving.
- Check and track your blood pressure. You can do this at your local pharmacy or supermarket.
- Avoid smoking and alcohol. Both can increase your risk of cardiovascular disease.
Your primary care physician can estimate your stroke risk and determine whether prescribing a statin is the right choice.
Read more about how to reduce your risk for stroke: What's a stroke? A 'brain attack' that can be disabling or deadly.
Common statin myths, explained
While misinformation can mislead and intimidate eligible patients from seeking appropriate treatment, you should know that statin intolerance happens in only about 1 in 20 patients, McLeod said. Here are some common myths about statins — and what the evidence shows:
Myth: Statins cause memory loss or dementia.
“There is no connection whatsoever,” McLeod said. A February 2026 study by the University of Oxford takes this further. It finds that statins do not cause most of the side effects listed on their labels. Symptoms like memory problems, sleep issues and weight gain appeared just as often in people taking a placebo. The Lancet reported that statin therapy risks are “greatly outweighed” by their cardiovascular benefits.
Myth: I eat well, so I don’t need statins.
This is not necessarily true. Although a balanced diet is crucial to overall health, genetics play a role in cholesterol levels. That means even the most committed athlete can have high LDL.
Myth: Statins are only for older patients.
Not always. While statins are more common for older adults, they may be recommended for younger people with elevated cholesterol. Stroke can happen at any age.
Myth: Once you start taking statins, you can never stop.
Treatment is individualized and depends on the patient. Some remain on statins long term because their underlying risk remains high. Otherwise, therapy may be adjusted depending on the patient’s needs.
