Screen time can have a negative impact on physical health due to increased sedentary behavior. Excessive screen usage is associated with a higher risk of obesity, as it often replaces time spent engaging in physical activities. Additionally, the blue light emitted from screens can disrupt sleep patterns, leading to further health issues. Prolonged screen exposure can also contribute to eye strain and poor posture. Balancing screen time with physical activity and ensuring breaks can mitigate adverse effects on health and contribute to overall well-being.