. >> alzheimer's, parkinsoson's. >> people are more obese or higher weight than they were 10 to 20 years ago. >> childhdhood cancers aree going up. >> we're seeing effects on sperm count in men. um, the catch line is, you know, memen today are not the men theirir grandfathers were. >> there are more of these bizarre birth defects, particularly around male reproductive development. >> if i i were a parent..... i would be very concerned. >> they were meant to make life easier, and they do. >> better things for better living through chemistry. >> chememicals fight disease, bolster food production, and support manufacturing. they're big business, a keystone of the u.s. economy. from consumer goods to high technology, almost all aspects of m modern life depend on the chemical industry. chemical production in the united states has grown 25-fold since world war ii. with sales of over $763 billion in 2011, the chemical industry supports over 3 million u.s. jobs and invests billions into research and development. our bodies take in a soup of chemicals every day, and this exposure has consequences