The human heart is approximately the size of a fist and weighs around 10 ounces. Despite its small size, it pumps about 2,000 gallons of blood every day.
The heart has its electrical impulse and can continue beating even when separated from the body. This unique characteristic allows for heart transplants to be successful.
A newborn baby’s heart beats at a much faster rate than an adult’s. A baby’s heart can beat up to 150 times per minute, while an adult’s resting heart rate is typically between 60 and 100 beats per minute.
The heart has its built-in protection mechanism. It is surrounded by a fluid-filled sac called the pericardium, which helps cushion and protect the heart from external impacts.
Contrary to popular belief, the heart is not located on the left side of the chest. It is positioned slightly towards the left but is mostly centered in the middle of the chest.
Stress can have a significant impact on the heart. Prolonged stress can lead to increased heart rate, elevated blood pressure, and a higher risk of developing heart-related diseases.
The heart has its unique set of blood vessels called coronary arteries, which supply the heart muscle with oxygen-rich blood. If these arteries become blocked or narrowed, it can lead to a heart attack.
Your heart rate can vary depending on your emotions. Strong emotions like fear or excitement can cause your heart to beat faster, while calmness and relaxation can slow it down.
Regular aerobic exercise is beneficial for the heart. Engaging in activities like running, swimming, or cycling helps strengthen the heart muscle, improves circulation, and reduces the risk of heart disease.
The heart has its natural pacemaker called the sinoatrial (SA) node. It generates electrical signals that regulate the heart’s rhythm and coordinate the contractions of its chambers, ensuring efficient blood flow throughout the body.