Medically reviewed by Kevin Wandler, MD, Chief Medical Advisor
For years, many people heard that a glass of red wine might be good for the heart. That idea has become far less certain. Researchers now recognize that earlier studies had important limitations, and health agencies increasingly emphasize that drinking less is better for overall health than drinking more. What is clear is that heavy drinking can seriously harm the heart and blood vessels.
This article explains the main ways alcohol affects heart health, the warning signs to take seriously and how cutting back or stopping can help your cardiovascular system recover.
Alcohol and Blood Pressure
Drinking alcohol, especially heavily or regularly, can raise blood pressure. Over time, high blood pressure strains the heart and damages blood vessels, increasing the risk of heart attack, stroke, kidney disease and heart failure. Because high blood pressure often has no symptoms, many people do not realize alcohol is contributing.
The encouraging news is that blood pressure often improves when people who drink heavily cut back or stop. For some, that change is noticeable at their next checkup.
Alcohol-Induced Cardiomyopathy
Long-term heavy drinking can weaken and enlarge the heart muscle, a condition called alcohol-induced cardiomyopathy. A weakened heart cannot pump blood as effectively, which can lead to shortness of breath, fatigue, swelling in the legs and feet, an irregular heartbeat and eventually heart failure. In some cases, heart function can improve if drinking stops early enough.
Irregular Heart Rhythms
Alcohol can disrupt the heart’s electrical system. Atrial fibrillation, a common type of irregular heartbeat, has been linked to both binge drinking and regular heavy drinking. Some people experience episodes after a night of heavy drinking, a pattern sometimes called holiday heart syndrome. Atrial fibrillation raises the risk of blood clots and stroke.
Symptoms can include a racing, fluttering or pounding heartbeat, dizziness, shortness of breath and unusual tiredness. Mention any of these to your doctor, especially if they follow drinking.
Stroke Risk
Heavy drinking and binge drinking are associated with a higher risk of stroke, including strokes caused by bleeding in the brain. High blood pressure and atrial fibrillation, both linked to alcohol, add to that risk.
Other Ways Alcohol Affects the Heart
- Triglycerides: Heavy drinking can raise triglycerides, a type of blood fat linked to heart disease.
- Weight: Alcohol contains calories and can contribute to weight gain, which adds strain on the heart.
- Medication interactions: Alcohol can interfere with blood pressure medications, blood thinners and other heart drugs.
- Sleep: Drinking can worsen sleep quality and sleep apnea, and both are connected to heart problems.
Withdrawal Can Stress the Heart Too
If you drink heavily, stopping suddenly can cause a rapid heart rate, spikes in blood pressure and, in severe cases, seizures or delirium tremens. Alcohol withdrawal can be life-threatening, and people with existing heart problems may face added risk. That is why medically supervised alcohol detox is the safer route for anyone who has been drinking heavily.
Warning Signs That Need Emergency Care
Call 911 right away for chest pain or pressure, pain spreading to the arm, jaw or back, sudden shortness of breath, fainting, sudden weakness or numbness on one side of the body, trouble speaking or a sudden severe headache. These can be signs of a heart attack or stroke, and fast treatment matters.
How Cutting Back Helps Your Heart
Reducing or stopping alcohol can lower blood pressure, steady heart rhythm, help with weight and sleep and reduce strain on the heart muscle. Pair that with regular physical activity, a balanced diet and routine checkups for even more benefit.
If cutting back on your own has not worked, you are not alone, and it is not a matter of willpower. Strategies for overcoming alcohol cravings can help, and professional support can make change more sustainable. If drinking is tied to depression or thoughts of suicide, call or text 988.
Questions to Bring to Your Next Checkup
- Is my blood pressure in a healthy range, and could alcohol be affecting it?
- Do any of my medications interact with alcohol?
- Should my heart rhythm be checked?
- Would blood tests for cholesterol, triglycerides or liver function be useful?
- Given my health history, is any amount of alcohol safe for me?
Being honest about how much you drink helps your doctor give you accurate advice and catch problems early.
Treatment at Promises DFW
Promises Dallas-Fort Worth provides medical detox and alcohol addiction treatment through residential care, partial hospitalization and a virtual IOP. Treatment addresses the emotional and practical sides of drinking through individual and group therapy, CBT and DBT, with psychiatric evaluation and medication management when needed. Every client leaves with an aftercare plan. Keep working with your cardiologist or primary care doctor throughout recovery so your heart health is monitored as it improves.
Frequently Asked Questions
Is red wine good for your heart?
The idea that red wine protects the heart is no longer well supported. If you do not drink, health experts do not recommend starting for heart health.
Can heart damage from alcohol be reversed?
Some effects, such as higher blood pressure, often improve after stopping. Heart muscle damage may improve in some cases if drinking stops early. Your doctor can assess your situation.
Why does my heart race after drinking?
Alcohol can raise heart rate and trigger irregular rhythms. If it happens often or comes with chest pain, dizziness or shortness of breath, seek medical care.
Can binge drinking affect my heart even if I rarely drink?
Yes. A single episode of heavy drinking can trigger irregular heart rhythms and blood pressure spikes, even in people who do not drink often.
Give Your Heart a Fresh Start
Our admissions team is available 24/7 to talk through your options, from medical detox to ongoing treatment. We verify insurance at no cost and in confidence, and same-day admission is often possible when a bed is available.
Learn about insurance options, contact us online or call (469) 546-9303.