Coronary By-Pass Surgery is a modern day medical procedure to treat hardening of the arteries in the coronary artery which can lead to chest pains and heart attacks due to insufficient blood flow to the heart. The procedure involves splitting the breastbone and removing blockages, allowing the blood to flow again and eliminating chest pain. The verse "Didn't we open up and expand your breast for you" may be a sign of heart disorders and present-day coronary by-pass surgery. Allah then swore by the olive, which is beneficial to the heart.