I think it's what Nyororin said, it's not really about someone's base temp... it's more just about the individual. I've heard that having a higher base temp is better for your health simply because it's harder for bacteria to live in hotter temperatured environments (hence fevers... as far as I know). I have nose problems and all that good stuff... so since I've been in Japan I've been sick quite often (since I'm not good at dealing with such drastic seasons yet). It's funny because most of the Japanese people I talk to think that a big nose=really great breathing. If only
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I'm going to make a random comment about Japanese living/lifestyle: Too much noisy TV. The TV seems to be on constantly in most peoples' houses I've been to. Something about Japanese TV that I just can't stand is how compressed the audio is. To sum it up, the compression that they do takes quiet things and makes them louder and takes loud things and makes them quieter... so you end up with sound that doesn't really have any dynamics. It also allows the TV stations to crank up their sound louder than they normally would. So you get this constant barrage of noise coming from TVs all the time. I don't know why it is, but people feel the need to have their TV's on almost 24/7 here.