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Still, people need to eat, and since World War II, outright declines in consumer spending in the U.S. have always been modest and brief. That's partly because the government has become so acutely responsive to signs of distress. The Fed is already on the case, with three interest-rate cuts since September and more likely on Jan. 31. There's also fevered talk in Washington of a fiscal-stimulus package--income-tax rebates are a possibility, although so far Congress and the White House haven't been able to agree on anything...
...good news is that these blood-sugar spikes and crashes are easy to regulate. Blood sugar will rise and fall quickly if, for example, a person eats an easily digested meal of only white bread. Eat some vinegar with the bread, however, and the impact is dampened: The vinegar slows digestion, helping to keep blood-sugar levels more even. The same thing happens if a person takes his bread with nuts or with a glass of wine. (The dampening effect of alcohol reverses after more than a couple units, which may help to explain why moderate drinking, but not heavy...
Here's how it works. When you eat, your body breaks down the food into a stream of nutrients, including glucose (sugar), lipids (fats), and amino acids (the building blocks of protein). If your meal happens to be junk food - say, a processed bun with a cheap beef patty, French fries and a Coke - the rush of sugar causes something called "post-prandial hyperglycemia": a big spike in blood-sugar levels. Poor diet in the long-term leads to hypertension and buildup of gunk in blood vessels that increases heart-attack risk. But there are short-term effects too. "People...
Regardless of its benefits, healthy food can leave you feeling unsatisfied if you're used to eating junk. Junk food distorts a person's hormonal profile, says O'Keefe. Note, for example, the previously mentioned drop in insulin that leaves a person hungry not long after eating a heavy meal. Studies suggest that fatty, sugary foods promote excretion of the stress hormone cortisol, which seems to further stimulate appetite for calorie-dense foods. And the big post-meal spikes in blood sugar are more likely in people who don't exercise or those who carry weight around their abdomen...
...this study is raising questions I think a lot of physicians will think about switching to higher doses of drugs like Lipitor or Crestor before going to Vytorin," says Blumenthal. At least the commercials got one thing right - your risk of heart disease does depend on the food you eat and the genes you inherit. It's just that Vytorin may not be best way to fight those factors when it comes to keeping your heart healthy...