Transthyretin amyloidosis is a slowly progressive condition characterized by the buildup of abnormal deposits of a protein called amyloid (amyloidosis) in the body's organs and tissues.
If you play tennis, you may be familiar with the different racket customizing choices you have -- common choices include string type, gauge and tension. Not so common is an inexpensive device called a shock absorber or vibration dampener. These devices have no impact on your performance, but some players can't play without one. It's a personal choice, and if you do use a dampener, its placement must comply with the rules of the International Tennis Federation.
Rackets used in racquetball cannot exceed 22 inches in length from its handle to the top. A tennis racket can be as long as 29 inches with a frame width of 12.5 inches. Racquetball uses balls that are made of hollow rubber, and tennis balls have a fabric cover.