Descriptive epidemiological studies identify: a: direct cause and effect.
b: correlations.
c: selection bias.
d: incidence numbers and distribution spread.

answer: every other day

explanation: because you don't want to over work your body and especially if your just starting to work out.

answer:

there is no cure for hiv, although antiretroviral treatment can control the virus, meaning that people with hiv can live long and healthy lives. most research is looking for a functional cure where hiv is reduced to undetectable and harmless levels in the body permanently, but some residual virus may remain. most commonly hiv-antivirals are taken also known as nucleoside/nucleotide reverse transcriptase inhibitors (nrti's).