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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Men fall in love faster than women do.
32
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104