"When I exercise, I want to be sure to get my heart rate high enough to make a difference, without working out any harder than necessary. :-) I'm happy with this monitor, which is cheaper and simpler than most, and you can replace the battery on the chest strap yourself (not the case with some others)."
"I'm still trying to figure out if any nutritional strategies make any noticeable difference. (I think B vitamins and C help some.) I like this book, which has an alphabetical listing of vitamins/minerals and their uses and also an alphabetical listing of medical conditions and the vitamins/minerals that might help (or hurt)--all based on scientific research."
"No need to read this book, but do have your doctor check your thyroid levels. Hypothyroidism (an underactive thyroid gland) is apparently fairly common, especially among women, and a major symptom is depression."