What are work blocks?

Work blocks, as described by Andrew Huberman, are focused periods of time dedicated to concentrated work. Typically, these blocks are 90 minutes long, during which you should engage in deep, uninterrupted work without distractions like internet or phone use. These 90-minute work blocks are crucial for achieving significant productivity. He also mentioned that while three hours of such focused work might seem limited, it generally aligns with the maximum duration of deep work most people can handle in a day. Beyond these blocks, regular daily activities continue, such as checking texts and emails. The concept of work blocks can be adapted to different kinds of work and schedules, encouraging effectiveness across various professions and activities 1.