My first drink is a triple espresso taken with 40mg lisdexamfetamine just after waking. One hour later I’m ready to start my day. At least one more double espresso during the morning but nothing after noon or it will disturb my sleep.

I hear that consuming caffeine in the afternoon can have paradoxical effects and and cause sleepiness. It seems like a bad idea to attempt to override the tendency to wind down in the afternoon. Alcohol is also a sleep disrupter and generally toxic.

Stimulants play an important role in creating the 4 hour window of ‘creative’ time in my morning. If I can maintain a regular sleep cycle this mode of working seems to produce the greatest sustainable work effort. There’s some evidence for this approach presented in Oliver Burkeman’s Four Thousand Weeks.