Having dirty hands can cause it.
Here's an answer that is a little more serious. A relationship is supposed to make both of you happy. Does yours?
If you have really different views that are irreconcilable, you likely are not meant to be with each other. Not in this day and age. If you were living in the middle ages, the question would not exist. Now it does. So ask.
C. Obesity
Obesity is a common risk factor between type 2 diabetes and coronary heart disease.
The viral infection called Hepatitis A can be effectively controlled if you get vaccinated immediately after being exposed or infected by someone but not more than two weeks after the infection. Else it could get out of hand and really get into your system.