Technology can be leveraged to improve physical fitness through various tools and applications that track activity, offer workout routines, and provide nutrition advice. Fitness apps can monitor metrics such as heart rate, calories burned, and exercise duration, allowing users to set and achieve personal goals. Additionally, wearable devices like fitness trackers and smartwatches offer real-time feedback and encourage users to stay active by sending notifications. Online platforms also provide access to virtual classes and personalized training programs, making fitness more accessible and engaging for a wider audience.