I was at a business conference in Japan, and this is what I saw. SLEEPY JAPANESE. I have to say that at lease half the crowd was dozing off. I asked later about this to some Japanese folk, and they told me that this was normal and almost expected, in fact, it would be weird if it didnt happen. I found it amusing in a cute way, and I felt sympathetic to these people who obviously need more sleep in their lives.
SCIENCE AND SLEEP:
Circadian disruptions through frequent transmeridian travel, rotating shift work, and poor sleep hygiene are associated with an array of physical and mental health maladies, including marked deficits in human cognitive function. Despite anecdotal and correlational reports suggesting a negative impact of circadian disruptions on brain function.