Increased appetite
Anxiety
Answer:
Peer pressure due to having idiotic "friends" and parental or adult influence.
The three most common preventable causes of death in the population of the United States are smoking, high blood pressure, and being overweight.
Answer:
She's probably lonely and doesn't have people to talk to. Although if she's doing it in store, I'm not sure. It depends on how old your sister is. If she's a child, she probably has an imaginary friend, but otherwise, I'm not sure.
Explanation: