A dating expert has offered her two cents on Dr. John Gottman’s six-second kiss, which is said to build appreciation between partners and reduce the “stress hormone” cortisol. In the confusing world of relationships and dating, physical affection is one of the primary ways of showing love towards your partner. But relationships are not without their challenges, which is why it’s so helpful to have a range of experts offering tips like the healthy habits that could save your failing relationship. What is the six-second kiss?The term was coined by Dr. John Gottman, who has spoken considerably ab…