Question

yulia is twenty - four years old. she has been fit and lean her whole life and recently has begun to put on an unhealthy amount of weight. she goes to her doctor because she is not eating any differently than she has before, yet she is now heavier. what will yulias doctor most likely tell her?
adults need fewer calories than kids and teens, so she needs to eat less.
adults need more calories than kids and teens, so she needs to eat more.
adults are heavier than kids and teens.
adults need more exercise than kids and teens.

Explanation:

As people transition from childhood and adolescence to adulthood, their metabolic rate generally slows down. Adults typically need fewer calories than kids and teens to maintain their weight. Since Yulia's eating habits haven't changed but she's gaining weight, this could be due to her body now needing fewer calories as an adult.

Answer:

Adults need fewer calories than kids and teens, so she needs to eat less.