1/2 In the late 1600s, Antonie van Leeuwenhoek looked into a microscope and saw “small animals” living in his saliva. A few centuries later, we meta-analyzed what those tiny organisms - our microbiome - might mean for our well-being.

Link to the paper: doi.org/10.1038/s415...
Link to the dataset (OSF): osf.io/k54fx/

Interested in love and mate preferences? Our dataset includes responses from 117,293 participants across 175 countries. You're welcome to use it for your own research! Paper and dataset linked below. @ with amazing collaborators from the large-scale cross-cultural consortium <3

Just got back from #HBES2025 - what an absolute blast! Fantastic conference and even more fantastic people and the society. Loved both the big talks and the between-session chats. Only downside? Wish I could clone myself to be in several places at once! :)

20th-century anthropologists called romantic love a Western invention – our new paper, with data from 9 non-WEIRD societies (N = 937), finds high levels of passion, intimacy & commitment everywhere, adding evidence for the universality of love hypothesis. doi.org/10.1016/j.ij...

Such a tremendous loss... I never had the pleasure of meeting Ellen Berscheid, but her work has had a lasting impact on me. Her legacy shall live on.

The day has finally come... or rather, the 1,227th day. Today, I completed the Spanish course on @duolingoverde.bsky.social
I never thought it would be such a long, fun (and sometimes frustrating:) journey. Entonces, que debo hacer ahora con mi tiempo libre?!

Does a history of infectious diseases shape how we perceive our health? Our preliminary study finds mixed evidence across countries. Some analyses suggest a small positive effect, but overall, no clear link [link to the paper below] @ Amazing Large-Scale Cross-Cultural Team!

We found consistent evidence across two studies (Study 1 N = 61,067 individuals from 81 countries; Study 2 N = 6,620 individuals from 50 countries) that higher individualism predicts lower intensity of experienced love. Preprint: osf.io/preprints/ps...

2/2 Paper: doi.org/10.1007/s105...
The TLS-15 captures love as three core components:
❤️ Intimacy
🔥 Passion
🔗 Commitment
And if you're curious about your own love level you can take the TLS-15 test and see how you compare to people from your country! martakowal.com/tls

1/2 Happy Valentine's Day! Want to study romantic love? Our team validated the TLS-15 - a short, reliable love scale - in 37 languages! You can freely use it in your research. Link to the paper below:

1/4 Are you considering SSRIs for mental health reasons but you are worried about their impact on your romantic life? For years, researchers speculated that SSRIs might negatively impact romantic love. But, to date, nobody actually tested this! Well, we did. Here's what we found.