Amyotrophic lateral sclerosis (ALS), sometimes called Lou Gehrig's disease, is a rapidly progressive, invariably fatal neurological disease that attacks the nerve cells (neurons) responsible for controlling voluntary muscles.
The Alpine Scheitholt furnishes an example of this older type of European zither. By the late 18th century, two principal varieties of European concert zither had developed, known as the Salzburg zither (with a rounded side away from the player), and the Mittenwald zither (with both sides rounded).
Conventional toe stretchers, like the Yoga Toe, are the most popular type of toe separators on the market. Made of gel, plastic or silicone, they slide in between your toes and sit above, between and below your toes. This works to spread the toes apart and away from the ball of your feet.