4 ms·

There was a study conducted a while back which showed that the optimum body-thigh angle for sitting was not 90 degrees but 135 degrees. http://news.bbc.co.uk/2

• jedmeyers 14y ago
  The only drawback of a far laid-back position is that the neck might start to hurt.
• mahyarm 14y ago
  I've found the same too in my own personal experience. That and a lot of minor fidgeting and constant changing of postions.