AMMAR Machinery.
The mood of girls and boys would be worse than today. Our memory, the strength of our heart, our blood circulation would be a bit weaker, and the cholesterol level would rise. Exercise would be more difficult without them and the possibility of getting certain diseases might also rise.
Most importantly, in addition to all what was mentioned, the 36 million heart-shaped boxes that are dedicated around the world each year would be empty and filled with nothing!