Hearing your heartbeat in your pillow can happen for several reasons. Typically, the sound is amplified by your head position. For instance, if you’re lying on your side with your ear pressed against a pillow and have earwax buildup, internal sounds can become more pronounced.

This phenomenon is known as pulsatile tinnitus, a rhythmic sound that usually corresponds with your heartbeat. It often becomes more noticeable in quiet environments, like when you’re resting on a pillow, where other sounds are minimal. However, the symptoms may continue even while you’re active. It’s important to note that the sound might differ from the typical heartbeat.

While pulsatile tinnitus can be harmless, it may also indicate vascular issues or other underlying health conditions. It’s always wise to consult your doctor if you experience these symptoms.

This article (by Phil Lester) addresses the question, “Why can I hear my heart beating in my pillow?”

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