剧情简介：World renowned researcher Dr. Barbara Fredrickson gives you the lab-tested tools necessary to create a healthier, more vibrant, and flourishing life through a process she calls "the upward spiral." You’ll discover: •What positivity is, and why it needs to be heartfelt to be effective • The ten sometimes surprising forms of positivity • Why positivity is more important than ha...(展开全部)
作者：Barbara Fredrickson
出版社：Crown
ISBN：9780307393739
