You know the old drill, but it's time to get up to speed with the new version. Rather than sitting at a 90-degree angle in your chair, aim to recline a little bit further. Research over the fast few years has confirmed that sitting at an angle of 100-135 degrees is the best option for the spine, while sitting at 90 degrees is actually the worst. Sitting upright tightens the hip flexors to a dangerous point, while reclining slightly eases the back muscles and causes the least strain. You'll still be improving your posture, but with less negative impact on your body.
Ergonomic engineer Chris Adams created this handy infographic to show how people should sit at desks, based on the findings.
Want more ways to maintain good posture? We've got easy expert tips here. Remembering to get up every 20 minutes to stretch your legs, change your focus and re-align your body will work wonders, but if you're the type who needs a reminder (aren't we all) a tool like the Lumo might become your new favourite gadget.