Why is antifreeze important for a car's engine?

I heard that antifreeze is important for cars, but I'm not sure why. What does it do and why is it necessary for a car's engine?

Antifreeze, also known as engine coolant, is a vital component for your car's engine. It helps regulate the temperature of your engine and prevents it from overheating. It also contains anti-corrosion properties to protect your engine's metal parts from wear and tear.

Antifreeze is necessary for preventing your car's engine from freezing in cold temperatures. Without it, the fluid in your engine could freeze and cause significant damage. It also helps maintain proper pressure in your engine's cooling system, which is essential for its overall function.