Ever wonder why jumping between tasks feels so draining? New research shows artificial intelligence can now measure the exact cognitive toll of context switching. By analyzing brain patterns and performance metrics, AI systems quantify what we've always suspected—multitasking isn't free. Each shift between projects carries a hidden mental price tag. This breakthrough could reshape how we design workflows, especially in high-stakes environments where focus matters. The data doesn't lie: our brains pay for every context hop, and now we've got the numbers to prove it.