進入檢視：2022-2023年英語週報九年級第10期答案彙總

When it comes to weight loss. 80 percent of people try to do it on their own. Says John LaRosa, president of Marketdata. which tracks the $4 billion commercial U.S. weight loss industry. He says apps like MyFitnessPal, Fitbit and Fooducate appeal to those consumers. LaRosa says apps are also cheaper than most commercial programs and they appeal to the younger population that traditional chains have struggled to attract.

“The average age of a customer of Jenny Craig, or Nutrisystem or WW is about 48. and it's probably going up.” LaRosa says. “It's going to be a shrinking market if they just cater to the baby boomers.”

That explains why WW improved its digital tactic. “It used to be that we hesitated to even show the app in our commercials, and that has so shifted.” says Debra Benovitz, a senior vice president of WW.. “I think the future is being a really strong science-based technology partner in the health and wellness space. However, having physical stores is still our biggest difference from upstarts that are completely digital.”