Waking up to a feeling of trembling or shaking can be a jarring experience. Many individuals may find themselves puzzled and concerned about this unsettling sensation, which can range from mild shivers to more pronounced tremors. Understanding the underlying reasons for this phenomenon is crucial, as it can be linked to various physical, psychological, and environmental factors. The human body goes through numerous changes during sleep, including fluctuations in temperature and muscle relaxation. These transitions can sometimes lead to unexpected responses upon waking. Additionally, our mental state and external circumstances can also play a significant role in how we feel when we first open our eyes in the morning. For…