Boredom is a state of mind characterized by a lack of interest, stimulation, or challenge.Loss of motivation may indicate burnout, depression, schizophrenia, Parkinson's disease, or Alzheimer's disease.It is a subjective experience that can manifest in a variety of ways, including restlessness, apathy, and disinterest.It can arise from routine tasks, repetitive activities, or lack of novelty, which can result in a sense of time dragging or feeling stuck in a monotonous routine.Boredom can also arise from unmet expectations or a discrepancy between our desires and our current reality .Boredom can be caused by a lack of external stimulation or by internal factors such as a lack of motivation or a sense of purpose.A person should contact a doctor if their lack of motivation is severe or chronic or if they experience additional symptoms.It may also be a complication of conditions such as a stroke.