Any of the muscles that are under our voluntary control (skeletal muscles) can cramp. Cramps of the extremities, especially the legs and feet, and most particularly the calf (the classic  charley horse ), are very common.
Northern Europe includes Denmark, Finland, Greenland, Iceland, Norway, and Sweden. This area is known for harsher environments. It is generally cold, has poorly developed soils and limited mineral resources. This region has a population of over 25 million people.
Denmark, is a country located at Northern Europe, it has an area of 43,090 Km 2, and it may be considered quite a small country. Denmark, with a population of 5,617,000 people, it is one of the least populous country in the world130 people per km 2.The capital is Copenhagen and its currency is Danish krones.enmark, with a population of 5,617,000 people, it is one of the least populous country in the world130 people per km 2.