许多种类的肿瘤可产生比普通细胞高得多的表皮生长因子受体,影响之一就是刺激了肿瘤细胞的扩散。
The basic problem is that while it's true that exercise burns calories and that you must burn calories to lose weight, exercise has another effect: it can stimulate hunger.有个简单的问题:如果锻炼能消耗热量并且消耗了热量就可以减肥的话,锻炼也会产生另一个效果:刺激食欲。
Some have found that alcoholic beverages speed the emptying of food from the stomach and stimulate gastric acid, while others maintain there is little effect.有些科学家发现酒精饮料能加速胃排空并刺激胃酸,而另一些则持保留意见。