The most common Zodiac Signs of prolific serial killers are Pisces, Virgo, Gemini and Sagittarius. The common denominator is that they are mutable zodiac signs.

According to research from the 1980s, psychogenic tears differ in composition from other tears. It may be a way to rid the body of stress related chemicals.

In an international study, participants who suppressed their crying or felt shame as they cried reported that they did not feel as good afterward.