There's countless studies that have shown if you are successful with mating, finding a girlfriend, and sleeping with lots of women the correlation is you have high testosterone. Sleeping with many women causes your testosterone to spike, which also leads to more women.

There is no direct line correlation between mating success and looks, it’s your testosterone level. Studies keep proving this and guys keep saying it’s how beautiful a man is, that isn’t the reason.

"Testosterone is associated with mating success but not attractiveness or masculinity in human males"

https://www.sciencedirect.com/science/article/abs/pii/S0003347208001322

https://www.sciencedirect.com/science/article/abs/pii/S2352250X14000049

https://pubmed.ncbi.nlm.nih.gov/31348926/

https://pubmed.ncbi.nlm.nih.gov/17316638/

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Edit:

Guys with low testosterone are less motivated sexually. Pretty easy concept to grasp. Scientific studies just prove this out in the real world. I even got graphs from studies below.

Attractive men get more attractive women on average, this isn’t the entirety of what’s considered mating success.

This is why I never take the time to share studies or provide graphs online to people who ask. You could pile a mountain of evidence, and people will just point to one small aspect and think they’ve debunked your entire argument.

Also, I listed the 1st study for a reason. Testosterone will make you more masculine. However, even if you’re ugly with testosterone, you will still get you more mating success with women.

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These additional reasons below are not the reason men don't have options, it's because you're not getting the options you want. There's no study to prove this like testosterone above.

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The 2nd reason you're not successful with women is being out of shape, no girl no matter how unhealthy she is wants to date a fat guy. Women do not hook up or want to date obese men. If you are rocking a gut, you are totally off the radar of women for a casual or romantic option.

The 3rd reason a guy doesn't have a girlfriend is because he is a simp. Omega guys are submissive and pine for women out of their league. They take their insecurities and give it to a beautiful women and submits to her. These guys pay for onlyfans and fall in love with strippers. Simps will shell out 100s of dollars to women that would never talk to them in real life. Guys that are simps are not stereotypical loser neckbeards that can't get any girl. They are delusional guys that think they deserve a noticeably attractive woman that all men want to sleep with. They think that woman will give him the respect he thinks he deserves by society, their minds live in a fantasy. They could be chasing for a regular girl, they'd rather do this charade.

While being attractive can help finding you a partner, it's not one of the main reasons men are alone. There is no correlation between number of sexual options and how attractive you are. The only direct link between success with mating that exists is how high a man's testosterone is. Promiscuity is also linked to women with higher levels of testosterone.

When guys tell other guys you need to get in the gym and stop being addicted to porn. They are giving you 2 messages that can vastly improve your chances with women If you don't have enough sexual drive, you're not going to do whatever it takes to get a girl.