Is it normal to feel your heartbeat while lying down?

It is usually normal to feel your heartbeat while lying down, but hearing it may be abnormal, especially when associated with illness, and should be evaluated according to individual circumstances. Specific analysis is as follows:

If a person is thin with low body fat and a sunken abdomen, they may feel the pulsation of the abdominal aorta, thus sensing their heartbeat. This is considered a normal phenomenon and typically does not require special treatment. Additionally, individuals under high mental stress or suffering from poor sleep may also become more aware of their heartbeat. This is generally normal, but patients are advised to engage in regular physical activity, improve sleep quality, and divert their attention.

However, if a person has medical conditions such as aortic valve insufficiency, mitral valve insufficiency, anemia, or hyperthyroidism, the heart's volume load may increase. In such cases, feeling—and even hearing—one's heartbeat while lying down is abnormal. This warrants prompt medical evaluation at a hospital to determine the underlying cause and initiate appropriate treatment to prevent disease progression and protect overall health.