The immune system is a complex network of cells and proteins that defends the body against infection. The immune system keeps a record of every germ (microbe) it has ever defeated so it can recognise and destroy the microbe quickly if it enters the body again.
Did you know that more than two billion people worldwide are affected by anemia? According to the Cleveland Clinic, not everyone who has it may even realize it. This common condition prevents oxygen from being carried to your body's organs and tissues, often resulting in symptoms such as fatigue, headaches, pale and dry skin, and a fast heartbeat.
Freckles and moles are both darker colored dots on your skin. You might even use the words interchangeably, according to Walk-In Dermatology. Perhaps you have lots of freckles or plenty of moles, or maybe you don't have any or very few. No matter how many moles and freckles you may have, you might not know the differences between them or how to tell which one is which.