 
 <prompt> Wetin dey happun wen you dey fly for plane and you dey change time zones? Based on di question wey dey above, write one context wey go contain di answer. E fit be 1 - 20 sentences. Context: <response>: Shift-work or chronic jet-lag get serious effect for di body circadian and metabolic events. Animals wey dem force make dem chop during their resting period dey show say dem get increased body mass and dem genes wey dey control time and metabolism dey change. For humans, shift-work wey dey make person chop at irregular times dey cause wahala for insulin sensitivity and e dey make body mass increase. Shift-work also dey bring increased risk for cardio-metabolic syndrome, hypertension, and inflammation. 