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.
Racket size- Head size prevalent in professional tennis ranges anywhere between 95 and 105 sq inches, a larger head gives you a bigger sweet spot and fewer chances of a miss hit. Beam thickness- This is one thing that i have personally found important while playing but not given much importance while choosing rackets.