On the train this morning I was reading “The Four Pillars of Investing: Lessons for Building a Winning Portfolio” by William J. Bernstein when I noticed my fingernails are not smooth but actually have vertical ridges. This puzzled me and so when I got to my office, I googled: Ridges in Fingernails and I found the following:

Nail textures: Vertical ridges that appear on the nail can indicate disorders as simple as iron deficiency, poor absorption of vitamins and nutrients, overall poor health or they could indicate something as serious as kidney trouble. (So, you see why consulting your physician is so important.) These vertical ridges, as well as bumpy nails, can also suggest that one is prone to developing arthritis. Ridges running horizontally across the nail can indicate physical or mental stress.

OH MY GOSH!!!!!! I gotta start taking B12!