JPMorgan CEO Jamie Dimon says he’s ‘learned and relearned’ to not make big decisions when he’s tired on Fridays

No worker, from front-line employee to CEO, is immune to the end-of-week brain fog that comes after a string of intense days on the job. Over the course of his Wall Street career, JPMorgan’s Jamie Dimon has learned to avoid making big decisions when the weekend rolls around—fried nerves will only lead to poor choices. 

“I’ve learned some stuff like when I was 30, like anger doesn’t help,” the bank CEO recently said during an interview with NPR. “Making big decisions on a Friday when you’re tired is a really bad idea.”

Dimon has spent more than four decades in finance—from working as an assistant to then-American Express president Sandy Weill, to leading $826 billion titan JPMorgan through the financial crisis. 

Despite having learned what works best in business, Dimon admitted he still falls into the Friday decision-making trap; and every time he comes out of it remembering why he avoids making important choices...