so many ill patients

sometimes i just wonder y r there so many ill patients in the hospital... the 6 wards in medical department are always full with patients.. u cant find any bed left empty for over a night. it is even worse in ICU, coronary care unit and wards in other departments. r ppl getting sicker n sicker nowadays, or is it due to the population is so huge?
it's still stressful to see patients come into the hospital in late stage n ill condition. many of them would do better if only they've came earlier. everyday things happen as if to remind me there is only so much we can offer to the patients.