Tips for people who spend a lot of time seated:
You should not spend too much time in the same, seated position. If this is the case however, be aware of your posture and the way you sit. The backrest should be high enough to support your entire back. It is also a good idea to use a headrest to support the neck. Make sure your shoulders are relaxed. If sitting by a table, your forearms should rest on the table in a 90-degree angle.