body fat websites:
explanation, and if the calculator part doesn't load, you can use the 2nd link I provide to calculate your body fat
http://www.wikihow.com/Measure-Body-Fat-Using-the-US-Navy-Method
http://www.calculator.net/army-body-fat-calculator.html
The 21 day fitness challenge, you can also get personal training and other fitness or nutritional services from Terry, here is her website
www.designfitness.ca
she does personal training in her home, can help you get set up in your home too, she runs the 21 day fitness challenge all year, every 5 weeks I believe it starts again, you can sign up for her e-mail list through her website where it gives information about nutrition, the classes she offers and so much more!