Love starts early for babies, and effects last a lifetime

Love starts young.
Only weeks after birth a baby can recognize a face smiling down, and can smile back.
As those early months go by, love evolves. And those early months all build into an emotional launching pad that will enable us some day to have friends, to fall in love as adults, and even to think, to use language, to understand our world.
All that, starting from the moment when a baby looks up at an adult face and breaks into a smile.
The first sign comes at six weeks to two months of age,