How Fast Is Kiss Approach?

The final approach of an affectionate kiss moves at about 0.2 metres per second — slow, deliberate, intimate. About 70% of people instinctively tilt their head to the right, a preference that begins in the womb and stays for life.

Couples who kiss frequently report higher relationship satisfaction. The biochemistry behind it includes oxytocin release, which strengthens emotional bonds.

• Slightly faster than a sloth
• 7× slower than walking pace