This is discussed at length in (Breath)[0] which also discusses other things about how it's caused issues with breathing.
There are also some interesting bits on breathwork and the scientific aspects of it. I was able to use those techniques to temporarily lower my heart rate to 45 BPM during meditation.
What's your normal resting heart rate? Mine hovers around 39-40, so getting to 45 isn't really an issue.
I was surprised at how quickly my rhr came down after I started cycling more even though I've never been very active in my life.
It also (I think!) helped with my sleep apnea/general sleep problems, and I've always assumed a good bit of that was literally just being better at breathing.
You're either humble bragging or you need to ask a few questions to your doctor
In an interview with Joe Rogan, James Nestor suggested to encourage our kids to eat non soft food daily.
Ironic you can only make soft foods with those
Obviously there are downsides to letting small children chew on bones.