Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Kissing an infection-free partner is good for your teeth!
141
Men fall in love faster than women do.
32
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Couples' personalities converge over time to make partners more and more similar.
235
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
One in five long-term love relationships began with one or both partners being involved with others.
177