In other words, how do the brains of those with BPD differ from those who don't have BPD? The Wikipedia article doesn't even contain any possible explanations whatsoever.
I'm specifically interested in whether or not their maximum ability to feel an emotion decreases as they grow older (so by that I'm meaning - let's ignore the effects of tolerance induced by life ...
Although I have listened some songs hundred of times I can't sing the lyrics to any of these songs from beginning to end without pauses. However I am able to whistle the whole song without difficulty. ...