訳をお願いします
とある論文らしいんですが、難しすぎて分かりません。。
投げやりで申し訳ないのですが、訳していただけると嬉しいです。
Somewhere in your brain, there’s a cake network. You couldn’t see it even if you knew where to look. But it’s there all the same―and it’s powerful thing. You weren’t born with a liking for cake, but long ago, early in your childhood, you got your first taste of cake, and instantly a series of connections was made in your brain. In the process, your brain filed away a simple, primitive, unconscious idea: Cake is good. A life time love affair with cake―perhaps pleasant, perhaps tortured―began.
Human beings have always had a complicated relationship with food. Staying alive from day to day requires our bodies to keep a lot of systems running properly, but most of them operate automatically. Eating is different. It’s a voluntary thing. And it’s essential to keep the species going. So nature cleverly controls the game, making sure we can’t resist food. That has lately meant trouble. Human history has usually been characterized by too little to eat rather than too much. Nature never planned for what could happen when unchecked appetites were suddenly matched by unchecked resources. Nut we’re seeing it now.
Today, Americans―as any trip to an all-you-can-eat buffet will tell you―have become a soft, inactive, overfed lot. It’s not just that 67% of the U.S. population is overweight (including about 17% of children aged 6 to 19); it’s that we know that fact full well and seem helpless to control ourselves. Our doctors warn us about our rising blood pressure and cholesterol a, and we get briefly frightened―until we’re offered the next helping of cheesecake of curly fries, and then our appetite shouts down our reason, and before we know it, we’re at it again.
Just why is our appetite so powerful a driver of our behaviour, and, more important, how can we control it? If that question doesn’t have an easy answer, it’s no wonder. Understanding a process as complex as appetite is an incredible challenge that involves many fields of scientific knowledge. But science is trying.
Researchers in labs and institutes around the world are looking into the brain to understand the regions where appetite is perceived and satisfied, and pinpointing the sensitive areas on cell surfaces that keep us hungry or make us feel satisfied. They’re studying the nerve networks of the digestive system, as well as the operation of the genes that drive our appetite in order to track how signals of satisfaction are sent and to determine why they sometimes get lost. And they’re looking back into human history to understand better how we became inclined to overeat from the start and how we might be able, so many thousands of years later, to break away from this tendency at last. “The problem of excessive body weight has become a leading cause of death worldwide”, says Dr. David Cummings, and associate professor of medicine at the University of Washington. “Understanding it is perhaps the most serious challenge in the field of medical research.”
