A number of health authorities now acknowledge that vitamin D deficiency is a pervasive problem in the United States and the developed world. Sun deprivation, already a problem for inhabitants of ...

Joshua Pearce takes unusual satisfaction in strolling through Walmart. The shelves laden with toys, household items, tools and clothing inspire in him a certain smugness, a pride in American ...

The earliest 3-D printing technologies were developed in the 1980s, but the practice is still in its infancy in most applications. Jean-Jacques L’Henaff, vice president of design for American Standard ...

Rickets is caused by a deficiency of vitamin D, which is required for normal calcium absoprtion. Once known primarily for maintaining bone strength, vitamin D is now thought to contribute to ...