The boundaries between you and not-you — what lies beyond your skin — relax and become more permeable. While infused with love you see fewer distinctions between you and others. Indeed, your ability to see others — really see them, wholeheartedly — springs open.

I began studying human emotions more than twenty years ago. At that time, almost every scientist working in this area was studying one of the negative emotions, like fear, anger, anxiety, or depression. I wondered why no scientists cared to explain why we humans sometimes feel upbeat and pleasant. I liked the idea of charting new terrain. It's been a fun intellectual puzzle. There's so much to discover!

Love is a momentary upwelling of three tightly interwoven events: First, a sharing of one or more positive emotions between you and another; second, a synchrony between your and the other person’s biochemistry and behaviors; and third, a reflected motive to invest in each other’s well-being that brings mutual care

The benefits of positive emotions don't stop after a few minutes of good feelings subside. In fact, the biggest benefit that positive emotions provide is an enhanced ability to build skills and develop resources for use later in life.

Scientists have shown that because positive and open mindsets produce exploration and experiential learning, they also come to produce more-accurate mental maps of the world.

Positivity psychology is part and parcel of psychology. Being human includes both ups and downs, opportunities and challenges. Positive psychology devotes somewhat more attention to the ups and the opportunities, whereas traditional psychology - at least historically - has paid more attention to the downs.

You know that saying 'A little knowledge is a dangerous thing'? That's so true of positive psychology. Our latest research tells us that the pursuit of happiness is a delicate art. Certain approaches to seeking happiness are now known to backfire, whereas others are effective.