When does your body make antibodies? What activates the body to make antibodies or are they continually being produced?
The body produces antibodies during an immune response.
Antibodies are not constantly being produced. Their production begins during an immune response.
T-lymphocytes interact with a pathogen's antigen, typically in the blood. They mature into either killer cells, which begin to destroy the pathogen, or helper cells, which produce cytokines that signal to B-lymphocytes.
When they receive the signal, they mature into plasma cells and begin to produce antibodies. They are specific to the pathogen's antigen and can target and destroy it.