Macken Murphy29 February 2024

What Does Science Say Makes Someone Attractive? - Macken Murphy - #751

0Frameworks

7Insights

Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Myth Buster· 1

Myth Buster31:30

BMI Preferences Are Not Fixed—They Depend on Environment

Contrary to the idea that thinness is universally preferred, research shows that ideal body weight varies significantly across cultures and economic conditions. In environments with resource scarcity, higher BMI is often more attractive, suggesting that preferences are shaped by ecological and socioeconomic factors rather than fixed evolutionary standards.

In wealthier Western societies, lower BMI is generally preferred.
In cultures with historical resource scarcity, higher BMI is often seen as more attractive.
Economic conditions influence beauty standards—e.g., Playboy centerfolds become heavier during economic downturns.
Preferences shift based on environmental security, challenging the idea of a single 'ideal' body type.

“In a resource-scarce context, which is where most of our evolved psychology occurred, we see that heavier mates seem to be preferred.”
guest · 38:30

#BMI#body shape#cultural preferences#environmental security

Explainer· 4

Explainer00:30

What Makes a Face Attractive According to Science

Scientific research identifies facial averageness and symmetry as key traits linked to attractiveness. Averageness refers to a face that closely matches the mathematical average of many faces, which tends to be more appealing. Symmetry, where the left and right sides of the face are similar, is also consistently preferred and may signal developmental health and genetic fitness.

Facial averageness—being close to the statistical average of many faces—is linked to higher attractiveness.
Symmetry, where both sides of the face are balanced, is a strong indicator of attractiveness.
Both traits may signal underlying health and genetic quality, even though exceptions exist.
These preferences are not absolute, as many highly attractive individuals have unique or asymmetrical features.

“A person with that sort of face would look like a model right if you superimpose a set of faces the face that results from…”
guest · 00:45

#attractiveness#facial symmetry#averageness#evolutionary psychology

Explainer05:30

Why Men Prefer Feminine Faces in Women

Men consistently show a preference for facial femininity in women, which includes features typical of the average female face. This preference is strong among heterosexual men and is linked to evolutionary signals of fertility and reproductive potential. Feminine facial traits may indicate youth and health, making them universally appealing across cultures.

Facial femininity in women is highly attractive to men.
Feminine features are associated with youth, fertility, and health.
This preference is consistent across various studies and cultural contexts.
It reflects deeper evolutionary cues related to mate selection.

“Facial femininity is very attractive to men. Men love stereotypically girly womenly faces.”
guest · 06:30

#facial femininity#mate preference#evolution#gender differences

Explainer54:30

How Height Affects Dating Success for Men

Women generally prefer taller men, with attractiveness increasing up to about 6'1

Women's height preference follows a 'candy cane' curve—increasing up to 6'1", then leveling off.
Men taller than 6'5" may face diminishing returns or reduced attractiveness.
Even very tall men (e.g., 6'6") are still generally preferred over shorter men.
Height preferences reflect perceived dominance, protection, and social status.

“If you're very short, then adding a few inches really increases your attractiveness... then it starts to taper off around 6'1".”
guest · 55:30

#height#dating preferences#mate selection#physical traits

Explainer101:30

Stated vs. Revealed Preferences in Mate Selection

People often say personality traits matter most in a partner, but real-world behavior shows physical attractiveness plays a larger role initially. Over time, as people get to know each other, personality and compatibility become more important. This gap between what people say and what they do highlights the complexity of human mating decisions.

Surveys show people claim to value kindness and loyalty over looks.
Speed dating and real-world interactions show that attractiveness often determines initial interest.
After longer acquaintance (e.g., 9+ months), physical attractiveness matters less in relationship formation.
Revealed preferences (behavior) often differ from stated preferences (surveys).

“If you do a speed dating experiment, it's the hot person wins.”
guest · 102:00

#mate selection#revealed preferences#attraction#behavioral ecology

Q&A· 1

Q&A10:00

Do Women Prefer Beards or Stubble?

Research on facial hair preferences is mixed, with no strong consensus on whether women prefer clean-shaven faces, full beards, or something in between. However, heavy stubble appears to be a consistent preference, possibly because it signals both masculinity and grooming effort. Cultural and situational factors also influence these preferences.

Studies show conflicting results: some find preference for beards, others for clean-shaven looks.
Heavy stubble is consistently rated as more attractive than full beards or clean-shaven faces.
Stubble may signal a balance of masculinity and self-maintenance.
Preferences vary based on cultural norms and mating context (short-term vs. long-term).

“What women do prefer is heavy stubble—that seems to be pretty consistent.”
guest · 12:30

#beards#facial hair#mating preferences#stubble

Tool· 1

Tool95:00

Do Tattoos Affect Attractiveness?

Tattoos do not significantly increase attractiveness for men, despite being perceived as signals of health, masculinity, and dominance. For women, tattoos may increase approachability and perceived openness to short-term relationships, though not necessarily attractiveness. Cultural context heavily influences how tattoos are interpreted.

Tattooed men are seen as more masculine and dominant but not more attractive.
Women with tattoos are approached more often, possibly due to perceived openness.
Tattoos may signal sociosexuality or risk-taking behavior.
Cultural norms greatly affect how tattoos are perceived—e.g., taboo in Japan, mainstream in the U.S.

“They found that with fake tattoos on, women got approached substantially more.”
guest · 98:00

#tattoos#attraction#sociosexuality#cultural norms