According to brain and spirituality researchers Dr. Andrew Newberg and Mark Waldman in Words Can Change Your Brain, the listener’s brain can only recall about 10 seconds of content. Beyond that, nothing is going to register. As Newberg and Waldman write:
"If you talk for several minutes, the other person’s brain will only recall a fraction of what you’ve said, and it might not be the part you want to convey. The solution? Brevity followed by intense listening to make sure the other person has grasped the key points of what you said. If they have, great! You can say another sentence. If not, why move on? If the other person hasn’t understood you, what good will it do?"
Here’s the other good news if you have a child or teen (or spouse) who doesn't talk much: The person who shares highs and lows in a couple sentences in 10 to 20 seconds may not only be more efficient in communicating - but they may be significantly more effective in getting messages across! Any one-way communication beyond a half-minute increases the likelihood that the message a person is trying to get across will not be registered and remembered by anyone.
You can keep pouring water in a full glass all you want, but it’s only going to hold so much. Everything else will just be a waste of water. Likewise, after 10 seconds, you can keep talking all you want, but if there is no give and take—no true conversation—everything else is just a waste of time, energy and breath.
Don't worry if highs and lows are done in a couple sentences or syllables. Worry if they aren't done at all.