What are some of the problems (technical difficulties) in measuring health and illness?

Chapter 3 Social Epidemiology
After reading chapter 3, answer 1 of the following cite with page number and comment on the following 2 statements below

1. What are some of the problems (technical difficulties) in measuring health and illness?
2. What is the profile associated with longest longevity?
3. Describe 5 ways in which race/ethnicity, social class/social-economic status (SES) and gender are related to longevity, morbidity and mortality.
4. What is the Hispanic Epidemiological Paradox and why is it of interest?

What is the profile associated with longest longevity?