We are humans, therefore we are not perfect, therefore we worry. Worrying is unfortunately a part of human nature. Using this topic, we might actually be able to help others overcome their worries and fears, which means this is, in reality, a Biblical topic.
On second thought, it depends on how this topic is used. If people this topic turns into a 'fear-fueler,' that's not good and is unbiblical. But if people use this topic as—I don't know—a sort of therapy, a place to show tips of overcoming irrational fears, etc., this topic is Biblical, practical, and helpful.