which body controls the flow of tears, i wonder
of course tears come out when feel sad or when feel touched or even happy/glad.
but what is the critical point?... tear flow seems don't really have an easy equation like how water freezes to ice.
why sometimes even one is extremely sad, yet no tear drops
but why sometimes when one's mind is just wondering without any focus and one starts to cry?
also why one tries to hold back the tears and the tears seem to flow down the nose rather? so our eyes are some what linked to our nose?