Generally, Kim Jong-il is very careful in taking a partner. The horror of making a possible mistake seems to be magnified in Kim Jong-il's eyes and Kim Jong-il is very cautious. As a consequence, Kim Jong-il marry later than usual. But, once Kim Jong-il make a choice, Kim Jong-il become charming and devoted spouse.

Kim Jong-il have a good constitution. Kim Jong-il possess a considerable amount of vitality and it will be preserved well into old age, if Kim Jong-il take plenty of outdoor exercise. But, this can be easily overdone. Should Kim Jong-il exceed a reasonable amount, trouble will manifest itself in the breathing apparatus and will lead to bronchial diseases. Kim Jong-il is liable to attacks of sciatica and rheumatism after 45 years of age. It will be difficult to assign a reason for these attacks, but manifestly they are due to exposing yourself too frequently to the night air.

Kim Jong-il is rich in mental interests and the more cultured arts mean a good deal to Kim Jong-il Kim Jong-il find more pleasure in planning a holiday than in actually going over the itinerary. Kim Jong-il love books and reading, and enjoy rambling over a museum. Kim Jong-il is having a peculiar interest in old, particularly very old things.