一项研究发现，结婚会使皮质醇下降，这是一种应激激素，其下降表明人的焦虑在减少。
One study found that kissing caused a drop in cortisol, a stress hormone, indicating a reduction in anxiety.
其表现在皮质醇含量的升高。这是一种应激激素，它总会和一些负面的生物学效应联系在一起，比如沮丧和肥胖。
That surge is delivered by cortisol, a stress hormone often linked with negative biological effects, such as depression and obesity.
桑顿和他的同事们通过引入7个“提前”突变，成功地使最古老的受体AncGR1进化成为一种应激激素特定受体。
Thornton and his colleagues successfully made the oldest ancestor, AncGR1, evolve into a cortisol-specific receptor by introducing seven "forward" mutations.
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