In recent years, Lhasa City in China's Xizang has been continuously enhancing the happiness index of its elderly population. The local civil affairs department has equipped elderly residents with smart wristbands that feature functions such as emergency calls and location tracking. Family members and community staff can monitor the real-time whereabouts of the elderly through a mobile app. "Elderly care" is now blending traditional and modern approaches to unlock the happiness code on the plateau.