Lack of sleep can cause some of the same symptoms as depression -- extreme tiredness, loss of energy, and difficulty concentrating or making decisions. In addition, untreated depression may result in weight gain or loss, feelings of hopelessness and helplessness, and irritability.
Conflicts of national interest caused the World War II alliance between the United States and the Soviet Union to be replaced by a Cold War that lasted 45 years. Initially a dispute over the future of Europe, it grew to include confrontations around the world.
Why did the Berlin Airlift take place? The Soviet Union wanted to exert complete control of West Berlin so all rail, road an water links to the Allied sectors of Berlin were closed. The UK and US did not want to lo â¦ se control so they sent food and supplies into Berlin by air.