Task: Sentence Expansion
Input (English): Several double-blind experiments suggest that people who say they have EHS ca n't detect if electromagnetic fields are present , and are just as likely to report feeling sick after a phony exposure as they are after real exposure , making scientists think it is the nocebo effect .
Output (English): Since then , several double-blind experiments have shown that people who report electromagnetic hypersensitivity are unable to detect the presence of electromagnetic fields and are as likely to report ill health following a sham exposure as they are following exposure to genuine electromagnetic fields , suggesting the cause in these cases to be the nocebo effect .