When you really think about it, kissing can be kind of complicated. Sure, for many people it is highly enjoyable, but that doesn't change the fact that everybody has their own personal preferences ...

A single kiss can leave a lasting impression, whether it's in real life or on the silver screen. But why, exactly?

A kiss is one of the most universal gestures in the world. It’s a wordless way to show affection that transcends language, culture, and even species boundaries, conveying a great deal of meaning ...

KWONG: Oh. OK, so you found out in your research - by tracing the phylogenetic tree of kissing through primates, you found out that kissing was likely present in the ancestor of all apes who lived 21 ...

Ah, the small distances that separate modern relationships. The slam dunk for online dating is thanks to researchers at Kajimoto Laboratory in Tokyo, who write that online and long-distance couples ...

The Telegraph’s agony aunt offers advice to a woman whose partner is blaming his lack of affection on a dry mouth ...