Archive · 25 May 2025
Study: Mental Health Can Spread Between Partners Through Kissing
Imagine your mouth is like a tiny city full of little bugs.
A study found that when you kiss someone, you can share these bugs.
If one partner is feeling down, some of these bugs can travel to the other partner.
After six months, the partner who was feeling good might start feeling sad or worried too.
The study looked at couples who were married.
The scientists found that some types of bugs in the mouth, like Clostridia, can affect the brain.
Women seemed to be more likely to catch these bugs and get affected.
So, kissing can sometimes spread not just love, but also things that affect your mood!
A study suggests that mental health issues can be shared between partners through kissing.
The research involved 1,740 newlywed couples over a six-month period.
Healthy spouses showed increased symptoms of depression and anxiety after six months with a partner struggling with mental health.
Oral bacteria profiles of healthy spouses began to mirror those of their depressed partners.
Women were found to be more susceptible to bacterial transmission and mental health changes.
- Who
- Researchers studied newlywed couples.
- What
- A study revealed a link between kissing and the transmission of mental health conditions like depression and anxiety.
- When
- Over a six-month period.
- Where
- In Iran.
- Why
- To understand how mental health might be shared between partners.
- Study Focus
- Newlywed couples
- Participants
- 1,740 couples
- Duration
- Six months
- Key Finding
- Mental health can be transmitted through kissing
- Affected
- Depression, anxiety, and sleep disturbances
- Bacterial Families
- Clostridia, Veillonella, Bacillus, and Lachnospiraceae
- Gender difference
- Women are more vulnerable