[esens] 4/8 breathing to reduce ES symptoms

I've been experimenting with doing a lot of deep breathing to help my nausea
and ES symptoms.

Today I accidentally used the 4/8 breathing that I normally use for extreme
anxiety, and noticed a fair amount of relief of symptoms when I did this.

It seems like it eliminates the psychological part of the symptom, like the
4/8 breathing does with anxiety.

Glenn