I started getting pains and numbness in my back and upper arms in my late twenties. Knowing that had to change, and quick, I did two things: started using a standing desk, and got myself a Kinesis Advantage keyboard.
The premise is simple: put the most common keys (space, enter, delete, backspace, etc.) on your strongest digit, which is your thumb. The rest of the keys are laid out in a concave pattern, which makes it much easier to reach Z, ? and the other pariahs.
After 6 years, I decided to retire my original. The function keys were getting less responsive, the Page Up and Page Down keys no longer work, and its computer-industry-standard-beige has turned sallow. I traded it in for the fetching black number you see above. It never occurred to me for a moment that I’d purchase anything else.
