Student activists arrested by the security forces have been deprived of sleep for up to 72 hours, and beaten and tortured to the extend that they have been taken to the prison hospital frequently. Behrooz Karimizadeh, Peyman Piran, Bijan Sabagh, Behzad Bagheri, Anousheh Azadfar, Mehdi Gerayloo, Alnaz Jamshidi, Ehsan Azadfar, Nader Ahsani are among those.