Stuff to consider if you're making plans for Valentine's Day

The intriguing science behind kissing - Quartz

"According to an editorial in the American Journal of Medicine, we swap “an average of 9 mL of water, 0.7 mg of protein, 0.18 mg of organic compounds, 0.71 mg of different fats, and 0.45 mg of sodium chloride” when we lock lips."

Or maybe just stick to chocolate.