I get a lot of phone calls and letters from women who are confused about the results of their blood tests. Ten years ago, most of the confusion was about cholesterol. But most people now understand their cholesterol numbers quite well. The confusion now is over triglycerides.

There’s a nutrient deficiency that’s much more common than you may think. It’s been associated primarily with thyroid dysfunction, but it causes a lot more harm than that. Insufficient amounts of this essential element contribute to many other health problems, including cancer.

Back in 1993, the FDA approved a drug called Cognex (tacrine) to treat Alzheimer's disease. Tacrine works by blocking the breakdown of acetylcholine. This is an important brain neurotransmitter that plays a significant role in memory and learning.