If the cells' activity decreases, narcolepsy or sudden sleepiness, is the result.

如果这种细胞的活力下降，就会犯困瞌睡。

youdao

CONCLUSION: the serum ACE activity decreases in the event of cerebral infarction, which is related with the degree of cerebral tissue damage and the state of brain function.

结论：脑梗死可致血清ace活性降低，与脑组织损伤程度有关，与脑功能状态有关。

youdao

Smoking decreases your tolerance for physical activity and increases the tendency for blood to clot. It decreases HDL (good) cholesterol.

吸烟降低身体活动的忍耐力，增加血液凝结的可能性，降低高密度脂蛋白胆固醇（该胆固醇是好的，正常参考值1.16--1.55μmmol/L）。

youdao

If the marginal benefit of each activity decreases in the presence of the other activity, then chances are they aren't worth pursuing together.

WSJ: Finding an Innovation Strategy That Works