From what source does the body obtain the majority of its antioxidants?
A) the by-products of healthy metabolism B) sunlight
C) gastrointestinal microflora D) the diet
Question 2
According to the Surgeon General's report, to maintain a general level of health, a person should
A) accumulate at least 30 minutes of activity most days.
B) exercise at least 60 minutes each day.
C) get 30 minutes of high-intensity exercise each day.
D) achieve 20 to 30 minutes of continuous activity every day.