11.   Fatigue, illnesses, thyroid disorders, menopause, poor nutrition, vitamin deficiencies, alcohol and drugs such as tranquilizers and antihistamines are among them.

12.   Historically, the RDAs have been set to prevent such acute diseases as scurvy or beriberi, as a result of vitamin deficiencies.

13.   In the short term dieters can look forward to bloating and gas, and in the long term to vitamin deficiencies, experts say.

14.   Its symptoms are often confused with those of depression, delirium, vitamin deficiency or just old age.

15.   Potential causes of dementia can also include strokes, brain tumors, depression, low thyroid and vitamin deficiencies.

16.   Psychological stress such as grief or fatigue, substance abuse, vitamin deficiencies or illnesses from thyroid disease to infections can all interfere with remembering.

17.   Sometimes these can be caused by diabetes mellitus or even some vitamin deficiencies.

18.   Suggested risk factors include stress at home, exercise routines, pregnancy and vitamin deficiencies.

19.   Such rice could help alleviate a vitamin deficiency that blinds and kills millions of people each year.

20.   Suggested risk factors extend beyond the job to include stress at home, exercise routines and vitamin deficiencies.