It's an analogy of Hormone Receptors, just a different take on them,
The name Home Reception is an original title (me, shameless plug)

the radio analogy I can't take credit for. Why would any of this matter?. Simple, what you're trying to do with NBE (
Herbals) and hormone receptors are interconnected.
Most hormones circulate in blood, coming into contact with essentially all cells. However, a given hormone usually affects only a limited number of cells, which are called target cells (
this is where estrogen receptors correlate). A target cell responds to a hormone because it bears receptors for the hormone.
In other words, a particular cell is a target cell for a hormone if it contains functional receptors for that hormone, and cells which do not have such a receptor cannot be influenced directly by that hormone.
Analogy
Reception of a
radio broadcast provides a good analogy. Everyone within range of a transmitter for National Public Radio is exposed to that signal (even if they don't contribute!). However, in order to be a NPR target and thus influenced directly by their broadcasts, you have to have a receiver tuned to that frequency.
Trust me, this is going someplace!......