Too much time inside the house using a computer or watching television can cause someone to get cabin fever. A cabin is a simple house usually built far away from the city. People go to a cabin to relax and enjoy quiet time.

　　Cabin fever is not really a disease. However, people can experience boredom and restlessness if they spend too much time inside their homes. This is especially true during the winter when it is too cold or snowy to do things outside. Often children get cabin fever if they cannot go outside to play. So do their parents. This happens when there is so much snow that schools and even offices and stores are closed.

　　Some people enjoy spending a lot of time in their homes to make them nice places to live. This is called nesting or cocooning. Birds build nests out of sticks to hold their eggs and baby birds. Some insects build cocoons around themselves for protection while they grow and change. Nests and cocoons provide security for wildlife. So people like the idea of nests and cocoons, too.

　　The terms cocooning and nesting became popular more than twenty years ago. They describe people buying their first homes and filling them with many things. These people then had children.

　　Now these children are grown璾p and have left the nest. Th ey are in college. Or they are married and starting families of their own far away.Now these parents are living alone without children in their empty nests. They have become empty nesters.

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