The neurologist explained that in old days pernicious anemia was diagnosed by giving patient a course of B12 shots, and if health returned, then diagnosis was pernicious anemia.

So it was, that in keeping Time Line I observed not only my memory improving, my tingling, numbness and depression going away, but also ridges on my fingernails smoothing out.

Today, research shows that pernicious anemia with its characteristic lack of intrinsic factor is rare, while B12 malabsorption illness is on increase because of abundant use of antacids. In fact, there are estimates that 47% of general population has hypochlorhydria, condition where there is not enough gastric acid to free vitamin B12 from protein.

It is not because low B12 from all causes is so prevalent, that I have taken up vitamin B12 education as my mission, but rather because nerve damage that results from extended, untreated low B12 can be permanent.

Nerve damage can be type of peripheral neuropathy associated with diabetes; it can be impaired memory and cognitive dysfunction.

I have lost about half of my working memory and processing speed from years my low B12 went untreated. So, my web site is not most brilliant thing ever, but it does give clear information on vitamin B12 and how to recognize warning signs of low B12 from your fingernails: www.health-boundaries-bite.com/Fingernails.html

4. Recliner chairs - Recliner office chairs help user to work in a reclining position. It is suitable for people suffering from spinal injuries. A small table can be attached to chair to enable user to work.

5. Balans Chair - The Balans office chair keeps user's legs at an angle of 135 degrees to spine. In this position, while sitting upright, weight is distributed between front and back of spine and along its length evenly.

You can select an office chair for you depending on your specific requirements. Whatever type of office chair you end up using, experts suggest following tips to keep your body and back in good condition:

* Take a break every hour. Do not keep sitting through out day. Stand up and walk around periodically.

* Change your sitting position at different times. Keeping a single position is not naturally good for body.

* Sit straight without back support for at least some time during day.

* Even while sitting, try to move around as much as possible - pick up phone, reach for file or simply get up and stretch.