The promise of AI is fascinating: optimized productivity, lightning-fast data analysis, and freedom from routine tasks. Businesses and workers alike are fascinated (and a little bewildered) by how these tools can help them get more work done better. Faster than ever. But in their eagerness to keep pace with competitors and gain efficiency gains associated with AI deployments, many organizations have lost sight of their most important asset: humans, whose work is becoming fragmented by increasingly automated tasks. Across four studies, employees who used it as a core part of their jobs reported feeling lonely, drinking more and suffering from insomnia than those who didn't.