Wearable technology can significantly contribute to preventive healthcare by providing real-time health data, enabling early detection of potential health issues. Devices like fitness trackers and smartwatches monitor vital signs such as heart rate, blood pressure, and physical activity levels, helping individuals track their health trends over time. This continuous monitoring allows for timely interventions if abnormal patterns are detected, such as irregular heartbeats or changes in activity levels that may indicate underlying health problems. Wearables can also remind users to take medication, exercise, or rest, fostering healthier lifestyles and reducing the risk of chronic diseases. Ultimately, they empower individuals to take a proactive approach to their health, leading to better outcomes and reduced healthcare costs.