Always loving the great outdoors, then graduating with a degree in environmental science, Martha thought she would spend her life working in the deepest jungles of South America. Instead, she fell in love with her college sweetheart, settled down on the west coast, and is thrilled to be a stay-at-home mom for her three great kids. When Martha's youngest was four, she developed a severe case of asthma. After extensive medical testing and a personal quest of her own to understand why, Martha became concerned about the cleaners and products she was using in her home. Her findings have since taken...