Red Dead Redemption 2 is a western themed action-adventure game set in an open world environment.  The Game features item degradation, with equipment such as weapons requiring cleaning and oiling. The player can visit a barber  to change hairstyles; however, styles can only be cut from how much hair Arthur has, with his hair growing realistically over time. Arthur can also gain or lose weight depending on how much he eats, a feature absent from previous Rockstar games since.

Sources: Wikipedia