Almost total isolation and the most severe form of imprisonment
To be held in solitary confinement is to be isolated from all human contact inside the prison cell for 22-24 hours a day. Time spent in solitary confinement can range from days to years, and in some cases, even decades.
According to Prisonpolicy.org, the effects of solitary confinement on mental health can be lethal. People in solitary confinement make up approximately 6% to 8% of the total prison population.