Is it good to sit on a stiff stool or a soft one? Why? What about a hard stool with a soft cushion?
Soft stool is not good for lumbar vertebral with tail, like sleep dreams, although comfortable. But no wood bed is good.
Men to do bench, sit soft, easy to hemorrhoids.
A little better for Microsoft. Beneficial to the circulation of the blood, reduce the work of the stool, and thus conducive to physical fitness