Since you run a small business you may work at home a lot. If you spend time in a chair it’s worthwhile to get a good one. But how do you pick one? I’m 6’1″ and my wife is 5″6″, when I bought a chair for my desk it worked well enough for me. Then I moved to other areas of the house and my wife started spending a lot more time at that desk. After a few weeks she had to go to a chiropractor to relieve her back pain.
Do your back a favor and get a chair that’s fits your size and posture. One that encourages back and hand and finger health. Melanie Pinola from Lifehacker has a nice article on how to pick a good chair. Oh and take a break every hour to get up and move around.