You feel palpitations on your left side because the heart is closer to the chest wall in that position, making its beats more noticeable and causing sensations to reverberate, often due to normal heart rhythm changes (like premature beats) or increased awareness in a quiet environment. While usually harmless and related to factors like stress, caffeine, or dehydration, it's best to see a doctor if they're frequent or concerning, as they can sometimes signal underlying heart issues or electrolyte imbalances.
Vagus nerve induced palpitation is felt as a thud, a hollow fluttery sensation, or a skipped beat, depending on at what point during the heart's normal rhythm the vagus nerve fires.
Recent studies suggest that sleeping on the right side may be more comfortable for patients with heart failure or palpitations. This position places the heart higher than the rest of the body, reducing strain and making breathing easier.
When you sleep on your left side, your body's position can affect how your chest feels. One possibility is that the pressure from your weight on that side might press slightly on your heart or the tissues near it. For some people, this added pressure can trigger discomfort even if it's not a serious heart condition.
“It is understood that people who sleep on their side – in particular on their left side – could be more likely to have heart palpitations at night. Because the heart is next to the chest wall, the sensation can reverberate more strongly in this position,” explains Dr Mumin Noor.
Some experts say people who sleep on their backs may be more likely to feel palpitations because of pressure changes in the body when in bed. They also think that left-sided sleepers could feel palpitations more often because of the shorter distance between the heart and the chest wall.
What Are The Early Signs of Gastrocardiac Syndrome?
A study in Frontiers in Physiology discovered a potential link between sleep position and Afib. Among 94 participants with intermittent Afib, nearly 25% reported that their sleep position triggered symptoms, especially when sleeping on their left side or back.
Three early warning signs of heart failure include persistent fatigue/weakness, shortness of breath (especially with activity or lying down), and swelling (edema) in your legs, ankles, and feet, often accompanied by rapid weight gain from fluid buildup, all signaling your heart isn't pumping efficiently enough. Other key indicators are a chronic cough (sometimes with pink mucus) and heart palpitations.
Another vitamin deficiency that can lead to heart pal- pitations is vitamin B12. Similar to a folate deficiency, a lack of vitamin B12 can lead to anaemia and thereby result in heart palpitations, per the ODS. Vitamin D is another supplement that can cause heart palpitations when taken in large amounts.
While heart palpitations during sleep may seem alarming, they're often harmless and surprisingly common. In many cases, they're triggered by anxiety, caffeine, or certain medications, though they can occasionally signal an underlying heart issue.
Researchers have looked at sleep position in people with heart failure, a condition where the heart does not pump effectively. People with heart failure often experience shortness of breath that worsens when they sleep on their left side, Salas said, leading many to prefer their right.
To calm heart palpitations, use relaxation techniques like deep breathing or meditation, avoid triggers like caffeine and nicotine, and try vagal maneuvers like splashing cold water on your face or bearing down, but see a doctor if you have chest pain, shortness of breath, or fainting, as these can signal a serious issue.
It's a common occurrence, especially when you're in a tense situation. But sometimes people mistake heart palpitations for a more serious condition called atrial fibrillation, or AFib. AFib occurs when rapid electrical signals cause the heart's two upper chambers to contract very fast and irregularly.
Valsalva Maneuver
With your mouth closed, try to force the breath out through your nose. Doing this should stabilize your heart rate by affecting the vagus nerve. Once your heart is not racing anymore, you can take a few deep breaths to ease any lingering anxiety or stress.
What are the signs of vagus nerve problems?
Main symptoms
fatigue – you may feel tired most of the time and find exercise exhausting. swollen ankles and legs – this is caused by a build-up of fluid (oedema); it may be better in the morning and get worse later in the day. feeling lightheaded and fainting.
Impacts of a complete blockage
The symptoms – chest pain, tightness, and shortness of breath – can be similar, though. Sometimes, when arteries become completely blocked, a new blood supply develops around the blockage. This new blood supply, called collaterals, won't deliver as much blood to your heart.
Electrocardiogram. An electrocardiogram (ECG) is a test that records the electrical activity of the heart. The ECG reflects what's happening in different areas of the heart and helps identify any problems with the rhythm or rate of your heart. The ECG is painless and takes around 5-10 minutes to perform.
Some people get heart palpitations when lying down because of the position in which they sleep. Sleeping hunched over on your side can increase pressure inside your body, causing palpitations. Many other common causes of heart palpitations include: Anxiety, stress and depression.
The 30-second rule in atrial fibrillation (AFib) is a widely used, though debated, guideline defining an AFib episode as an irregularly irregular heart rhythm lasting at least 30 seconds on an ECG, used to distinguish it from shorter, less significant atrial arrhythmias and help guide diagnosis and treatment, particularly for stroke risk and ablation success. While a standard for trials and device monitoring, newer research suggests shorter runs of AF might still be clinically important, prompting ongoing discussion about whether this threshold accurately reflects stroke risk and overall AF burden.
Conditions That Can Look Like AFib
If your doctor thinks that palpitations are caused by an irregular heartbeat or other heart condition, tests might include:
Key Takeaways. While inflammatory bowel disease (IBD) does not directly cause heart palpitations, studies have found links between IBD and certain heart rhythm problems like atrial fibrillation.
Conclusions. This case explains the link between the vagus nerve and the cardiovascular system, proving that a damaged cervical vagus nerve can inhibit the heart rate and lead to arrhythmias, and eventually requiring surgical intervention.