Answer:
I tell her that excessive use eventually leads to diseases and tumors.
Explanation:
Excessive sun tanning for years can lead to skin cancer and skin tumors. The salon's claim is that if you don't use it too much then it is safe. Since excessive tanning over time destroys the skin cells, she can eventually die an early death of soaking up UV rays.
This depends on person to person. My favorite is behaviorism. This is because it focuses on the role the environment plays in a person, I am a microbiologist and a biochemist so I often look at what happens on the inside and enjoy looking at the outside factors that influence a person.