Simon & Garfunkel song /lyrics is actually about black coffee: "Hello Darkness my old Friend, I've come to talk to you again.
For our inner coffee addict.
"Some studies have shown that drinking coffee with caffeine may slightly increase weight loss or in actuality prevent weight gain by suppressing the appetite or the desire to eat.
In feng shui, black color belongs to the element of Water, direction North. Being a Water element color, black can be a powerful feng shui cure to use in the North area of your space to attract career opportunities.