When patients leave the hospital, they're often taking home a brand new regimen of medication, physical therapy, and aftercare. 

Ideally, every patient would do exactly as they're told. 

But reality has a different story.

 Too often medication costs, memory lapses, and poor health literacy impede patients' recovery.

 For the doctors, there's not a whole lot you can do about it.

In other words, you can lead a horse to water, but you can't make it drink.