To an MIT study, emotional words and phrases such as “I love you”, have a significantly stronger response when whispered into the left ear as opposed to the right.
Limbal rings, or the dark outlines around a person’s iris, are a feature that often goes unnoticed but are subconsciously perceived to be attractive. Limbal rings fade with age, therefore the darker the rings the more youthful the person. Since youth is associated with health and vigor, limbal rings are a sign that a person is a better mate.
Psychology suggests that people are often attracted to other people that resemble themselves, be it similar facial features, hair color, fashion style etc. This is due to the unconscious belief that the more the other person resemble our self, the more trustworthy we find that person.
Research Studies show that women are often attracted to more masculine-looking men during ovulation. However, at other times of the month they may find less-masculine men to be more attractive. This is largely due to the subconscious association with masculine-looking men having higher testosterone levels and therefore being more fertile.