Red light therapy (RLT) is widely used for skin rejuvenation, pain relief, muscle recovery, and overall wellness. However, some people wonder: Can red light therapy cause heart palpitations?
The short answer is: There is no evidence that properly used red light therapy directly causes heart palpitations.
Understanding Heart Palpitations
Heart palpitations are sensations of your heart racing, pounding, or skipping beats. They can be triggered by many factors, including:
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Stress or anxiety
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Caffeine, alcohol, or stimulants
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Dehydration
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Certain medications
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Underlying heart conditions
Since red light therapy uses non-ionizing, low-level wavelengths (630–850nm), it does not directly affect the heart’s electrical system in a harmful way.
Can Red Light Therapy Influence the Heart?
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Circulation Boost: Red light therapy improves blood flow and oxygen delivery, which may temporarily increase heart rate in some people, especially after full-body sessions.
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Relaxation Effect: For most users, RLT actually reduces stress, which can lower the chance of palpitations linked to anxiety.
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Underlying Conditions: If someone has pre-existing heart issues, they may feel more sensitive during any therapy that improves circulation.
If you notice persistent palpitations, it’s important to consult a doctor to rule out cardiovascular conditions.
Benefits of Red Light Therapy (When Used Safely)
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Skin rejuvenation – boosts collagen, reduces wrinkles and fine lines
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Pain relief – helps joints, arthritis, and muscle soreness
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Muscle recovery – speeds up healing for athletes and active individuals
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Improved sleep & mood – helps regulate circadian rhythm and reduce stress
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Enhanced circulation – supports better oxygen delivery and metabolism
Final Verdict
Red light therapy does not cause heart palpitations in healthy individuals. In fact, most users experience relaxation and improved well-being. However, people with heart conditions, pacemakers, or unexplained palpitations should talk to their doctor before starting red light therapy.
FAQ
Q1: Can RLT be unsafe for people with heart disease?
It’s generally safe, but always seek medical clearance if you have a heart condition.
Q2: Why do I feel my heart beating faster after a session?
This may be due to increased circulation and relaxation response, not a harmful effect.
Q3: Is it safe to use RLT with a pacemaker?
There’s limited research; consult your cardiologist before use.
Q4: How often can I use red light therapy safely?
Most protocols recommend 10–20 minutes, 3–5 times per week, depending on the device and treatment goals.