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.
Roger Federer endorses the Wilson Pro Staff RF 97 Autograph (click here to check out the review of that racket), and it is a very good racket for the right type of tennis player. But in reality, he does not use the exact same racket that we, as consumers, are able to purchase. Now, everyone thinks that he uses that racket, but he actually uses a similar racket that has weight added, through lead tape, in certain locations on the racket.