Calculating flight emissions

I'm looking at the user's flight, which mentions spending nearly 27 hours in the air. If that's actual flying time, an average speed of 510 km/h seems low—maybe it includes taxiing too. I can calculate the distance to about 8,569 miles. For CO2 emissions, it looks like long-haul economy flights emit around 0.115 to 0.15 kg CO2e per passenger per kilometer. I'll provide an estimate of 1.3 to 2.2 tons, depending on class and other factors. What would they like from here?Calculating flight distance and emissions

For this flight, I calculated an average speed of about 510.78 km/h, which is roughly 317.4 mph. I can put it into perspective by saying it's equivalent to traveling about one-third of the Earth's circumference, since the equator is approximately 40,075 km. This distance also compares to flights like Beijing to Los Angeles or New York. Regarding CO2 emissions, long-haul economy class has an impact estimate of 0.146 kg CO2 per passenger-km. I'll provide a conservative range of 1.2 to 2.4 tons, but I should mention some variability!Sharing jet lag recovery tips

I’m thinking of some quick health tips for recovering from jet lag: stay hydrated, get some sunlight, take short walks, and avoid heavy exercise for the first 24 hours. A small melatonin dose of 0.5–3 mg can help too—though I don’t need to include medical disclaimers.

It sounds like the user might appreciate some social media captions in Chinese, so I'll provide a few options along with key flight stats and recovery suggestions. Let’s keep it brief but informative!