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: ーWhat positivity is, and why it needs to be heartfelt to be effective ー The ten sometimes surprising forms of positivity ー Why positivity is more important than happiness ー How positivity can enhance relationships, work, and health, and how it relieves depression, broadens minds, and builds lives ー The top-notch research that backs the 3-to-1 "positivity ratio" as a key tipping point ー That your own sources of positivity are unique and how to tap into them ー How to calculate your current positivity ratio, track it, and improve it With "Positivity," you'll learn to see new possibilities, bounce back from setbacks, connect with others, and become the best version of yourself. "From the Hardcover edition. 邦題『ポジティブな人だけがうまくいく3：1の法則』　日本実業出版社　絶妙なバランスの上でこそメンタルヘルスは正常に機能する。アメリカの心理学者が証明した、ポジティブ＆ネガティブ感情3：1の黄金比を平易に解説。すぐに実践できるアドバイスも満載の、科学的ポジティブ追及本。 7月21日朝日新聞「広告欄 」に掲載。