Perception of bodily heaviness
Perception of bodily heaviness can be described as feeling as if one's body has significantly increased in its weight. This can result in feelings of slowness and sluggishness due to the body seeming difficult, uncomfortable, or impossible to move. Perception of bodily heaviness is often accompanied by other coinciding effects such as sedation and muscle relaxation. It is most commonly induced under the influence of heavy dosages of depressant compounds, such as GABAergics, opioids, and antipsychotics. However, it can also occur under the influence of deliriants and certain sedating psychedelics such as certain LSA, psilocybin, and 2C-C.