The emotionally balancing effect of Iodine is not given enough attention, IMO. I have teenagers, but no door slamming. Anger once in a while, but hardly any yelling. Conflicts, yes; but not the locked conflicts that goes on for days, even weeks.
Yes tears are good, they release the tension. Holding back, like the RAI, means we have to carry it inside:)
Natrium mur (salt) is the biggest homeopatic remedy for grief.
Tears are salty.. We need to know more about chemistry, not only the physical part of it!!