when in the day my brain is full focus to study?

The optimal time for focused studying can vary based on individual chronotypes. Andrew Huberman suggests that for those following a standard sleep schedule, with bedtime around 9:30 to 11:30 PM and wake-up around 5:30 to 7:30 AM, the first few hours after waking are typically marked by an increase in alertness, attention, and focus due to the rise in catecholamines like dopamine, norepinephrine, and epinephrine. This time is great for tasks requiring analytical thinking and strategy implementation with existing knowledge 1.

For optimal productivity, Dr. Huberman explains the principle of the 'temperature minimum.' If you wake up, on average, at 7:00 AM, your temperature minimum is likely around 5:00 AM. Your best work can typically be done four to six hours after your temperature minimum. So for someone waking up around 6:30 AM, an optimized work bout would be around 9:30 AM to 11:30 AM 2.

Additionally, morning exercise within the first hour of waking can help trigger the release of neuromodulators such as epinephrine, which contribute to heightened mental acuity and arousal during the late morning and even into the afternoon 3. This timing can set a neurochemical context that promotes focus and learning early in the day.

Utilize these insights to align your study schedule with your physiology for more effective learning and focus.