The correct answer is C. buildup of toxins. Diets that are very high in protein can cause buildup of toxins and ketones. The body goes into overdrive to try and get rid of these toxins.
I would tell him that his health problems are completely confidential and that I would not tell his wife. If the wife asked me, I would say to talk to your husband he will explain everything.
Staying home when you are sick. Covering coughs and sneezes with a tissue. Washing hands with soap and water or using hand sanitizer when soap and water is not available.
Positive thinking comes with a better mind set an can also allow you to come up with solutions. If you let frustration get in the way in difficult times it’s going to be more stress on yourself as well.