<p>I think the best chair has 2 basic qualities:</p>
<ol>
<li><p>It is the right height. This is the most important factor: many chairs are too low or too high for your work surface. That means you extend your arms up or down unnaturally, which stresses your back, shoulders and neck. Find a surface and chair that match and measure. Dining room or kitchen tables are often correct because they’re made to go together.</p></li>
<li><p>Get a chair that isn’t super comfortable. It is far better for you to move around often than to sit. I use a wood chair because my butt falls asleep if I stay in one place too long.</p></li>
</ol>
<p>As an additional factor, I don’t like chairs that recline when you lean back. This forces you to lean forward to remain in your work position and that stresses your back, shoulders and neck. You should be able to move around on your chair without it shifting. For the same reason, I prefer a chair that locks in place.</p>