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ALS stands for amyotrophic lateral sclerosis. It’s also called Lou Gehrig’s disease. ALS attacks motor neurons, the nerve cells responsible for regulating “voluntary” muscles that we’re aware of controlling, such as those in our arms, legs, and face. As these motor neurons degenerate or die, they stop sending signals to muscles. Unable to function, the muscles gradually weaken and waste away.

Do you tend to look on the sunny side, or do you see a future filled with dark, stormy skies? A growing body of research suggests that having a positive outlook can benefit your physical health. NIH-funded scientists are working to better understand the links between your attitude and your body. They’re finding some evidence that emotional wellness can be improved by developing certain skills.

For those who dream of being parents, pregnancy problems can be tremendously frustrating and disappointing. In recent decades, scientists have developed a wide range of approaches to help struggling couples have healthy babies. And NIH-funded studies are continuing to search for even better ways to overcome the challenges of infertility.

As you age, you may notice you have less muscle and energy and more fat. Carrying those extra pounds may be harming your health. It’s easy to be confused by advice about diet and exercise, but they’re key to avoiding weight gain as you get older.