Mine would be arbitrarily slowing down a character to maintain horror in a game. I get if there are reasons like age, injury, or location that could provide context, but don't turn my legs into molasses because you need to time the jump scare just right.
hunger would make more sense as just a stamina mechanic in most games since the time frames to actually starve would be crazy. i think project zomboid (zombie survival rougelite RPG) had the only realistic one i ever saw since you can stay alive for years if you do well enough. you get hunger status and positive or negative weight gain. after long enough time, if your weight falls below a dangerous level it slowly chips away your maximum health until you starve. it can take an in game month or more depending on body weight.