The document discusses several environmental diseases including asthma, autism, breast cancer, and cancer. It notes that over 15 people die from asthma daily in the US, with over half being children under 12. Autism is characterized by social and behavioral impairments that stop mental development at different ages, and may be triggered by environmental exposures during pregnancy. Breast cancer most often affects women under 50, and is caused by genetic, hormonal, and environmental factors. Cancer is caused by uncontrolled cell growth and can affect people of all ages, with half of cancer deaths being people not yet born. Environmental factors play a role in many diseases.