👉 Tremors, or shaking, are an involuntary movement of a body's muscles and tissues in response to various stimuli. They can be caused by a variety of factors such as physical exertion, stress, or illness. Involuntary movements during a tremor may include: - Slow, continuous shaking of the arms, legs, or head - Tilted head and neck - Rapid jerking movements of the body - Pulsations in the heart rate Tremors can