译文维生素D激素维生素D是身体健康所必需的维生素之一。我们从阳光中获得它,因为阳光中的紫外线使皮肤中的一种胆固醇变成维生素D。我们还能从某些食物(如牛奶或鱼肝油)中获得维生素D。维生素D能增加我们血中的钙的含量。钙是神经和肌肉细胞进行正常工作时所需要的物质。它也是生长坚实的骨骼所需的。二十世纪六十年代后期,威斯康星大学的赫克托·狄卢克和其他一些科学家对维生素D曾有过许多发现。狄卢克博士将一种具有放射活性的维生素D放入动物体内,并用一种特殊的仪器显示这种具有放射活 Vitamin D Vitamin D is one of the vitamins necessary for good health. We get it from the sun, because the sun’s ultraviolet rays make one of the skin’s cholesterol into vitamin D. We can also get vitamin D from certain foods like milk or cod liver oil. Vitamin D can increase the amount of calcium in our blood. Calcium is a substance that neurons and muscle cells need to work properly. It is also needed to grow solid bones. In the late 1960s, Hector Deluk at the University of Wisconsin and many other scientists had made many discoveries about vitamin D. Dr. Deluk puts a radioactive vitamin D into the animal body and shows it with a special instrument