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Bloody Brilliant: 10 Incredible Insights into the World of Blood

1. Lifeline liquid: Did you know that the average adult body contains approximately 1.2 to 1.5 gallons of blood.

2. Red and white wonders: Blood is composed of red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), and plasma. Each component has its unique role in keeping you healthy!

3. O-tstanding type: O-negative blood is known as the "universal donor" because it can be given to people of any blood type. On the flip side, AB-positive is the "universal recipient" and can receive blood from any type.

4. Iron importance: Iron is a vital component of hemoglobin. Consuming iron-rich foods like spinach, red meat, and lentils can help maintain healthy blood.

5. Plasma power: Plasma makes up about 55% of your blood's volume and is mainly composed of water, proteins, and dissolved substances like glucose and electrolytes.

6. Clotting champions: Platelets are essential for blood clotting. When you get a cut or injury, they clump together to form a clot and prevent excessive blood loss.

7. Blood types: There are four main blood groups: A, B, AB, and O. These groups are determined by the presence or absence of specific antigens on the surface of red blood cells.

8. Blood pressure basics: Blood pressure is the force exerted by your blood against the walls of your blood vessels. Maintaining a healthy blood pressure is essential to prevent cardiovascular diseases.

9. Donation do-good: Just one blood donation can potentially save up to three lives! Donating blood is a simple, safe, and selfless way to help others in need.

10. Blood's ancient history: Bloodletting, an ancient practice of withdrawing blood to treat various ailments, dates back over 3,000 years! Thankfully, modern medicine has come a long way since then.