Age and Ageing 2014; doi: 10.1093/ageing/afu099. 3. Irani SR, Vincent A, Schott J. Autoimmune encephalitis. BMJ 2011; 342: d1918. 4. Srinivasan AV, Murugappan M, Krishnamurthy SG, Sayeed ZA. Neuroleptic malignant syndrome. J Neurol Neurosurg Psychiat 1990; 53: 514–6. 5. Weiner AL, Vieira L, McKay CA, Bayer MJ. Ketamine abusers presenting to the emergency department: a case series. J Emerg Med 2...

Copyright © 2007 Massachusetts Medical Society. Once foods were fortified with vitamin d and rickets appeared to have been conquered, many health care professionals thought the major health problems resulting from vitamin D deficiency had been resolved. However, rickets can be considered the tip of the vitamin D–deficiency iceberg. In fact, vitamin D deficiency remains common in children and ad...

Vitamin D helps the body absorb calcium. Along with calcium, it is vital for strong, healthy bones. We normally get vitamin D through exposure to sunlight, which triggers the skin to make this vitamin. Very few foods naturally contain vitamin D. Milk and a few other beverages and foods are “fortified” with added vitamin D in some countries, such as the United States and Canada. You can also get...