The cause of cardiomyopathy, a thickening or enlarging of the heart muscle, may depend on the type: Dilated cardiomyopathy. The cause of this most common type of cardiomyopathy often is unknown. It may be caused by reduced blood flow to the heart (ischemic heart disease), infections, toxins and certain drugs. It also may be inherited from a parent. It usually enlarges (dilates) the left ventricle.
Oslo, Norway. Depend on where do you live and how do you eat. If you are planning to rent a small room (under 30m^2) and cook yourself, then live expenses should be under 10000 KR per month. It can easily get higher, of course. For example if you want to live near the city center and eat outside.
Most American, Canadian, and European expats in Costa Rica spend much less money on day-to-day expenses than they do in their home countries. Cost of living, of course, depends on lifestyle. But in many ways Costa Rica is much more affordable than back home. The minimum needed for a decent standard of living for a single person ranges from $1,500 to $2,000 a month. Many retired couples do well on $2,000 to $3,000 a month.