I believe this to be the opposite. With the digital age, any knowledge can be at your fingertips. Back then people had to rely on certain books to understand a topic, for example the Encyclopedia. My mother has A-Z books in a box somewhere. Those information will be heavily outdated as modern information try to be updated when new information is present.
Answer:
The immune (ih-MYOON) system attacks germs and helps keep us healthy. What Are the Parts of the Immune System? ... White blood cells, also called leukocytes (LOO-kuh-sytes), play an important role in the immune ... That way, if the immune system encounters that antigen again, the antibodies are ready to do their job
Explanation:
Stretching and maintaining a healthy diet, however it depends on your genetics more unfortunately
