For single people without own family/kids there might be a bit much examples of this kind at first, but don't fret if you watch it in full there are plenty of great nuggets of wisdom to ponder on and implement in one owns life.

The interviews with the various well known people like Coelho, Allende and the gripping tale of Ilibagiza alone make it well worth watching.

It's from 2014 or they didn't want to include more scientific stuff, so there is much more evidence around by now that the heart isn't just a muscle, but for example has a lot of nerve tissue etc which one might be tempted to look into after watching.