Mystery of the spark of life

The spark of life is the human heartbeat. At the beginning of creation, Genesis 2:7 states that “God formed man from the dust of the ground and breathed into his nostrils the breath of life and man became a living being.” Medical science tells us that a healthy human heart beats 60 to 100 times a minute. A well-conditioned or athletic heart may beat less than 60 times a minute.

The human heartbeat would be impossible were it not for the electrical impulse that travels down the heart, producing a beating heart. At the upper right part of the heart (nearest right arm) is the “sinus node”, which produces an electric current. The electricity produced in the “sinus node” travels down the heart, first to the “atrioventricular node” outside the atrial wall, and onward to the “bundle of His” near the bottom of heart. This causes the atrial and ventricular walls to contract and dialate—pushing blood through the heart and into the body. Only God knows how the chemical reaction is generated within the sinus node that produces the electrical spark of life.

The human heart comprises four chambers: two upper atria (right and left) and two lower ventricles (right and left). Oxygen-deprived blood from the veins enters the right atria and, by its contraction and dilation, pumps blood into the right ventricle, which sends it to the lungs to pick up oxygen. The oxygen-rich blood returns from the lungs, enters the left atria, where it is pumped to the left ventricle and out into the body. A heart beating 70 to 75 times a minute will cycle through the above machinations about 100, 000 times every day. Only the Supreme Designer could have created the human heart.

The heart can become sick like any other organ—its coronary arteries becoming clogged and its electrical rhythm altered. A clogged artery is caused by heredity, eating foods containing highly saturated fat, lack of exercise, and obesity, or stress that causes microscopic tears in the arterial lining, increasing susceptibility of plague formation. Clogged arteries require the skills of an Interventional Cardiologist who performs angioplasty by inserting expandable “intra-artery” stints to reduce the blockage and restore blood flow. The most severe cases require a heart surgeon who performs coronary bypass surgery by suturing vein graphs around arterial occlusions. Erratic heartbeat such as atrial fibrillation and other abnormal heart rhythms require the services of a Cardio-Electrophysiologist who can restore normal heartbeat through cardioversion, ablation, medication, or implantation of a defibrillator or pacemaker to normalize heartrate.

Medical science cannot produce the electric spark that generates within the sinus node and sustains the heartbeat of eight billion people on earth every second of every day. Only the Supreme Provider can create the ionization of chemicals at the cellular level to produce the electric spark that causes the human heart to beat—the same One who has kept the heavenly bodies in perfect clockwork precision from the beginning of time. He also is the Caretaker of the afterlife. It was His only begotten Son who paid the price for our sins so that we may receive eternal life. According to Christian doctrine, faith in Christ is essential to salvation.

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