Which factors that affects health can be controlled to some degree? environment and lifestyle choices only lifestyle choices only lifestyle choices, environment, and medical care genetics, environment, medical care, and lifestyle choices

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.   

So you and your partner don’t get sexually transmitted diseases and so your partner doesn’t get pregnant