During the holiday season, it is common to consume alcohol in excess. However, beyond the health dangers and risks associated with driving, this overconsumption can also lead to a phenomenon known as “holiday heart syndrome.”
What is “holiday heart syndrome”?
Holiday heart syndrome refers to a cardiac arrhythmia caused by excessive alcohol consumption. The day after excess, palpitations or rapid heartbeat may occur. According to Dr. Gérald Kierzek, emergency physician, this arrhythmia, called atrial fibrillation, can also increase the risk of stroke: “One in four strokes is linked to an episode of fibrillation.
The role of alcohol in this syndrome
A 2020 study found that ethanol acts directly on a key enzyme, protein kinase C, disrupting the function of heart cells. This imbalance impacts the electrical polarization of the heart and causes arrhythmias. These effects usually appear within eight hours after drinking alcohol and disappear within 24 hours. People already prone to these disorders should therefore avoid alcohol completely, recommends Dr. Kierzek.
Why do heart attacks increase during the holidays?
According to the American Heart Association, deaths from heart attacks increase by 10% in winter, with an additional 5% peak around Christmas and New Years. Among the causes:
- The cold: it causes vasoconstriction of the arteries, particularly the coronary arteries, reducing their diameter and increasing the risks;
- Eating excesses: dishes high in fat and salt;
- The stress of preparations: an underestimated aggravating factor;
- The delay in support: patients are often hesitant to consult during the holidays.
“This phenomenon is exacerbated by a combination of stress, cold and excess food,” says Dr. Kierzek. “In case of discomfort, you should never postpone a consultation.”
How to monitor and protect your heart?
To detect atrial fibrillation, tools such as a connected watch or a Kardia allow you to measure your heart rate in real time. If you feel unwell, an irregular pulse or a feeling of shortness of breath should alert you.
Good practices to avoid risks
The American Heart Association offers simple recommendations for enjoying the holidays with peace of mind:
- Act quickly if you feel unwell: call 15 if you have symptoms such as chest pain, shortness of breath or discomfort;
- Moderate consumption of alcohol and food : favor a balance in your meals and avoid excesses;
- Managing stress : learn to put the preparations into perspective so as not to let yourself be overwhelmed;
- Maintain regular physical activity : do at least 150 minutes of sport per week, even during vacations;
- Follow your treatments : if you are under treatment for hypertension or another pathology, don’t forget it, even during the holidays.
The end of year celebrations are a precious time to share with your loved ones. By following these simple tips, you will considerably reduce cardiovascular risks while enjoying these moments of conviviality. Celebrate, but in moderation, to start the new year healthy!