Definitely cutting down on coffee helped me. One cup before noon and that’s it!
This was the norm according to many sources and one of Andrew’s recurring themes involves light and how the proliferation of unnatural light has conversely led to so much physical and emotional disturbance during the night. Matthew Walker (Why We Sleep) recounts that historically, people would have two separate sleeping periods during the night, which is not what we expect these days. I remember the siesta business hours when I was stationed in South and Central America, which often seemed to be both cultural and practical when the afternoon swoon set in. Hence, more coffee for me.