What are the side effects of stress? how does stress affect a person physically, socially, and emotionally?

Physically, being under a large amount of stress can be detrimental to the body's overall health, like high blood pressure, which can cause heart attacks, which in some cases lead to death. And insomnia can also be a cause from too much stress. Socially, it can cause you to be antisocial and to avoid social situations, it also can cause panic attacks and breakdowns. Emotionally it can cause depression, and again panic attacks, and an leave you angry/depressed.

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.