If you're concerned that your sleep is too shallow, you may have sleep apnea syndrome?! And it could lead to hardening of the arteries, heart failure, or high blood pressure...?!
His condition is serious 
on a different level!
حالته خطيرة على صعيد مختلِف
Der hat andere Probleme!
Él está grave en otro sentido.
Está grave en otro sentido.
Lui è grave per un altro motivo!
Isso é outro problema!