If you're running for longer than 90 minutes, the sugar in your blood and liver glycogen become more important because your stored muscle glycogen gets depleted.
如果你超过90分钟，你的血糖和肝糖原变得比原来重要因为你存储的肌肉糖原渐渐枯竭。
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09052810 Scientists believe they may have identified a gene that controls abnormal production of sugar in the liver, a very troublesome problem for people with diabetes.
Carbohydrates were first named according to their natural sources; e.g., beet sugar, cane sugar, grape sugar, malt sugar, milk sugar, cornstarch, liver glycogen, and sweet corn glycogen.