Jennifer Love Hewitt suffers from claustrophobia, so much so that she has trouble taking elevators in tall buildings. The actress also has a fear of sharks, which keeps her from swimming in the ocean. She claims to be a hypochondriac as well, aware that her obsession with illness "drives(s) people mad". What she may not know is that phobias are treatable conditions.
Phobias typically develop when a triggering event causes a negative association to be made with the object or situation in question. This doesn't mean you have to get stuck in an elevator to be afraid of riding in one; simply imagining the worst-case scenario can cause enough anxiety to create the negative association. Once this association exists, those with phobias tend to avoid situations that have anything to do with what they fear, which on the one hand alleviates their anxiety but on the other reinforces their avoidance. The thought process is: "As long as I stay out of crowded elevators, I'm safe, so I better continue to avoid them!"
Jennifer describes passing out while filming a scene in a tanning bed in 100-degree heat. She likely experienced claustrophobia, and this situation no doubt reinforced her fear of enclosed spaces. Confronted with similar situations in the future, she will be reminded of how terrible it was to pass out, worry that it will happen again, and subsequently experience extreme anxiety, which she will of course want to escape by avoiding the threatening situation altogether.
Phobias are best treated with Cognitive-Behavioral Therapy (CBT). Drug treatments and psychotherapy have been shown to be less effective than CBT. The techniques of this type of therapy work to dissassociate fear and anxiety from the feared object or situation. Systematic Desensitization is a process in which patients are exposed to stimuli related to their fear while in a relaxed state. As they become able to remain relaxed while exposed to, say, a mental image or a photograph of a shark, they move on to more and more direct exposure. For instance, patients would first watch videos of sharks, then visit an aquarium to see a shark in person. Eventually, they would work up to swimming in the ocean, and perhaps even scuba diving with sharks.
Flooding, a more extreme technique, involves exposing a patient to their worst-case scenario, and requiring them to remain in the situation until their anxiety subsides. The theory behind this approach is that high anxiety levels cannot remain high; they must eventually come back down. In Jennifer's case, she might be asked to get into a crowded elevator and ride it up and down repeatedly until she stops feeling anxious. It sure doesn't sound like fun, but this sort of thing does work, and can lead to tremendous relief for a person who is living a life hindered by anxiety and fear.
Jennifer Love Hewitt Talks About Her Phobias [Starpulse]