Answer:
The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.
Information
The immune system protects the body from possibly harmful substances by recognizing and responding to antigens. Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens.
Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens. Your immune system learns to see these antigens as normal and usually does not react against them.
That are going to to work out the muscles in your body in each area. And make sure you switch it up different every time you work out to avoid getting bored of the same work out. it would also target working out the muscles that you might have missed to pay attention too.
It is one of the 4 major organs
Talk to someone about your feelings, do things that make you happy, have a balanced food diet
