Humans use one of two types of defecation postures to defecate: squatting and sitting. People use the squatting postures when using squat toilets or when defecating in the open in the absence of toilets. The sitting posture on the other hand is used in toilets that have a pedestal or "throne", where users generally lean forward or sit at 90 degrees to a toilet seat. In general, the preferred posture is largely a cultural decision. People adapt their defecation posture to the toilet type available to them, e.g. while travelling or if moving to another country.