Michael was laid off from his job as a mechanical engineer, a job he held for 31 years. He had several patents to his name at the time he was laid off by his company. Now in his late 50s, Michael finds himself looking for a new job for the first time in decades and is struggling. He finds that it is difficult to even land an interview. After 6 months, he is getting restless. He takes a job assembling bicycles at a bike shop because it gives him the opportunity to work with machines again and something to fill his time. Michael is experiencing ______.