Why people may regain wait - lower resting metabolism due to "second heart" and excess skin

https://www.washingtonpost.com/national/health-science/why-do-so-many-people-regain-weight-after-going-on-a-diet/2016/12/29/1fb99202-b58b-11e6-b8df-600bd9d38a02_story.html?utm_term=.6d605d38c795