Bipolar disorder is a chronic mental illness that causes dramatic shifts in a personâs mood, energy and ability to think clearly. People with bipolar have high and low moods, known as mania and depression, which differ from the typical ups and downs most people experience.
Polar bears are the largest of the three bears found in North America. They range from about seven hundred pounds up to about fifteen hundred pounds. Not only are they the largest bear found in North America they are also the most dangerous to humans.
Alaska Population Density The current population of Alaska ranks the state 48th in the country in total population. With a massive surface area of 665,384 square miles, Alaska is by far the largest state in the US. It's obvious that Alaska is also by far the most sparsely populated state in the Union, with an average of just 1.2 people per square mile.