Most of us have woken up with a damp pillow at some point in our lives. A little drool here and there during sleep is often harmless. But what if it starts happening more often? What if one day you realize your shirt is soaked—or it’s always from the same side of your mouth?
That’s exactly what happened to Xiao Liang.
He thought he was just overtired. But his body was trying to warn him of something far more serious.