If you are suffering from Low Energy, Feel Tired, Sluggish, have difficulty Losing Weight, have Dry Skin then this book is a must read for you. 

When faced with these symptoms in my clinic I first suspect a slow metabolism and low thyroid function. However to be sure the symptoms are not from other issues or to see if there is a combination of health problems developing; I would eliminate the following list of other possibilities that should be checked to find the answer or cause to your individual case history. 

Things that can make you feel Tired and Lethargic! 

1. Low Iron and Ferritin (the store house of iron in your body) levels 

2. Low B12, B5 and B6 levels 

3. Low Blood Sugar levels 

4. Diet Analysis to see if you are having blood sugar drops which will affect your energy and concentration, especially around 3-4 pm in the afternoon.