#paper information

Title: No gender differences in attraction to young partners: A study of 4,500 blind dates Authors: Paul W. Eastwick, Eli J. Finkel, Eva M. Meza, Kellie Ammerman Journal: PNAS 2025 Vol. 122 No. 5 DOI: https://doi.org/10.1073/pnas.2416984122

Summary of thesis content

1. Research background: Challenges to traditional concepts

In cross-cultural studies of mate choice, one of the most consistent findings is often this: Men prefer younger women, while women prefer older men. This is usually explained by evolutionary psychology as: men seek fertility (younger), women seek resources and status (older). However, most of these studies are based on “questionnaire surveys” (What kind of people do you like?). This paper asks: Do these preferences matter when people actually date face to face?

2. Research method: real blind dating

Researchers collaborated with Tawkify, a US-based matchmaking company, to collect data from 6,262 participants.

• Sample Characteristics: Average age 46.8 years (range 22-85 years), mainly middle-aged people seeking long-term partners.
• Data volume: 4,542 real blind dates, resulting in 9,084 date reports.
• Measurement: “Romantic Attraction” after the date, “Overall Rating” and “Willingness to go on a second date”.

3. Core findings

A. Both men and women love young people (No Gender Difference)

This is the most amazing discovery. The data showed that participants generally rated younger subjects more highly. What’s more, this preference for youth does not differ significantly between men and women.

• Men like younger women (no surprise).
• Women are equally attracted to younger men (contrary to what they said on the questionnaire).

B. The “upper age limit” is in vain

Participants will set an “Upper Age Limit” when joining the service.

• Women usually set a higher upper limit than men (saying they can accept older people).
• But in actual dating, regardless of whether the object exceeds this upper limit, it does not affect the attractiveness rating trend.
• In other words, even if a man exceeds the upper age limit set by women, as long as he is relatively young (or has youthful qualities), women will still be attracted to him. Personal principles are insignificant in the face of the chemical reaction after meeting.

4. Discussion: Why is there such a contrast?

The authors propose several possible explanations:

1. Say no with your mouth, be honest with your body (Stated vs. Revealed Preferences): On an abstract level, women may think that they like mature and stable older men, but in face-to-face instinctive reactions, the vitality and physical attractiveness brought by youth may be more advantageous.
2. Changes in social roles: Most of the women in this sample are financially independent (average annual income of $150,000). When women no longer need to rely on men for resources, they may return to their more primitive mate selection criteria of appearance and vitality, making their preferences more similar to men.
3. Structural issues in the dating pool: In reality, “older men and younger women” pairings are common. This may not be because women like older men, but because men like younger women, which leads to women being “forced” to accept older partners. When given the choice (as in the case of blind dates in this study), women actually want to pick younger ones.

#My understanding and experience

When reading this paper, I couldn’t help but think of the old saying: “Men are very specific and always like 20-year-olds.” Now it seems that this sentence may have to be changed - **Human beings are very specific and always like young people. **

1. A revision of evolutionary psychology?

In the past, we often thought that women’s age preference was for “resources.” But this study implies that when women themselves have resources (the women in the sample have high incomes), their demand for “resource providers (usually older)” decreases and they instead pursue “genetically superior people (usually younger).” This is actually in line with evolutionary logic, but the environmental parameters have changed (female resources have increased).

2. Gender equality of “age anxiety”

This may be a warning sign to men, but it may also be liberating. In the past, society always believed that men are “more valuable as they get older,” but this study ruthlessly points out: Older men have no advantage when it comes to first-sight attraction. Middle-aged uncles may no longer be able to rely on “maturity and stability” and ignore appearance management, because your date may be secretly taking a look at the little girl next to you.

3. Data integrity

This once again proves that behavioral data (Revealed Preference) is often more honest than questionnaire data (Stated Preference). We think we have principles (e.g., “I won’t date anyone younger than me”), but when an energetic young man sits across from us, chatting and laughing, those principles fall apart in an instant. This paper uses 4,500 dates to tell us: **Instinct is always more powerful than reason. **

Reading date: 2025-10-29 Notes organized: Dylan Chiang