Depth is a good thing – it makes poems sing and novels resonate, and without it, no one would go scuba diving ever again. So why do so many spa-goers shy away from deep-tissue massages? We think it’s because they simply don’t know enough about the technique and all of the benefits it confers. Have you ever considered a deep-tissue massage but opted for a different treatment instead? If so, here’s everything you’re dying to know but may have been too afraid to ask: