Good to see an article that addresses such a broad issue as tiredness. Too bad though, that it starts on the "3rd floor of the building," so to speak. Low thyroid, clogged arteries/heart trouble, iron deficiency/tired blood, hepatitis C/liver virus all are not the root cause of your tiredness but are already the result of something else. Suggesting drug therapy such as synthroid, cholesterol lowering drugs, etc. is not removing those underlying causes but suppresses what ever little ability your system still has to respond.
It would have been a lot more helpful to address the real "foundation" issues. All four conditions have something in common: your food and lifestyle habits and the resulting absorption problems and mineral deficiencies. Addressing in greater detail how with proper nutrition and lifestyle choices these kinds of tiredness could be avoided and the four above mentioned conditions be prevented might have brought greater benefits.
Let us make one major commitment for 2008: let us stop putting diesel into our gas tank; let us look after our body at least with the same dedication and care we show to our cars. Happy New Year to All!