Your immune system is an intricate arrangement of organs, cells, and specialized tissues that operate simultaneously to protect against harmful pathogens like viruses and bacteria.

It's a complex topic to tackle, but we've gathered our favorite resources below to help introduce and/or expand your knowledge.

The more you learn, the more familiar the terms will become. We recommend exploring as many resources as possible, even though you'll hear a lot of the same information. It's much easier to understand the basic concepts once you're familiar with the vocabulary.