Heavy flier here (100K Kms in 2017 for example). In addition to the suggestions below, I would like to add: 1. On 8-12hour flights there is a zone of about 2 h

Heavy flier here (100K Kms in 2017 for example). In addition to the suggestions below, I would like to add: 1. On 8-12hour flights there is a zone of about 2 hours, where the mind is clutter free. I usually use this time (use paints a intent, but usually this auto-flow) to contemplate about things that need sorting in life, and write it down. On re-read it has a texture that is different than how I think when I am on ground. 2. Since I do not have time to recuperate from jet lag (I work on both ends of the flight), one recent habit that has helped me is starvation in-flight (I drink lots of water). Some of my flights are 15-hours non-stop. Same rule. I find this to have helped my jet lag the most. There is some evidence this works for others too (1). Since my company flies me business, it is tempting to say know when the cheese and dessert cart rolls in, but I would rather skip it than suffer a few days of being a zombie :) (1) https://www.reuters.com/article/us-brain-clock/skip-the-pretzels-starving-may-fend-off-jet-lag-idUSN2252042720080522?rpc=64 https://www.reuters.com/article/us-brain-clock/skip-the-pret...