Viruses and bacteria that live in our bodies are everywhere. Fortunately, our immune system provides a powerful barrier against these foreign invaders. Without it, we would be helpless against pathogens, get sick, and die. The immune system has two major components: the general immune system and the specialized immune system. The general (sometimes termed innate) […]
Feeling sick? Having a flu? That familiar tickle in your throat, the runny nose that triggers a series of sneezes, and the disheartening realization of falling ill can be too stressful to deal with. You shouldn’t wait to see how serious your cold or flu symptoms will grow at this early stage. Fever, headache, cough, […]