The study also found that passionate love is quite universal.
Differences between straight, gay, lesbian and bisexual participants were very small. Older people reported slightly more experiences of passionate love than younger people. This suggests love does not stop with age.
Men reported slightly higher numbers than women. This was mainly because straight men reported being in love a bit more often than straight women. However, the gap was small.
Overall, passionate love appears to be something most people experience in a similar way.
Passion versus steady love
Therapists say this research is helpful. Many people feel pressure to chase constant excitement in relationships.
But passionate love, with its intense emotions, is often short-lived. Life changes. Responsibilities grow. Feelings settle.
What often lasts longer is companionate love. This is the steady kind of love built on trust, comfort, shared jokes and daily support. Experts say this is what keeps long-term relationships strong.