Description : Is it normal when I plug my ears, do I feel / "I hear" my heart beating?
Last Answer : "Yes. I can imagine 2 explanations. The earplug creates a connection between the drum in the ear and the blood vessels, so it can amplify the heartbeat. The other idea is that you have a voice even ... most of the noise in the environment is filtered out by the earplugs, and so it can be heard."