How do we boost up our immune system?

1. Correlate with life experience

1.1. Know some useful methods and healthcare information

1.2. Set up our own healthcare plan

1.3. Try to get enough sleep

1.4. Do exercise frequently

1.5. avoid overly salty, fatty, sugary or processed foods

2. Strengthen our perspective

2.1. Immune system has an important role to protect our health

2.2. The optimal immune system relies on a multifaceted approach

3. Further analyse

3.1. consult books, journal articles, newspapers, etc

3.2. exchange information with other groups

3.3. join meetings/conferences about the topic