 This Independence Day, we honor and thank those who've served in our military. Many have made sacrifices to protect our country, including their health. Veterans are twice as likely than those who haven't served in the military to develop ALS, also known as Lou Gehrig's disease. ALS is a neurodegenerative disease that affects nerve cells in the brain and spinal cord, causing patients to lose the ability to walk, speak, and swallow on their own. Veteran Elizabeth Fassler lives with ALS and is helping to raise awareness about this incurable disease.