To be completely honest, Trueba et al. actually found that not only did taking an exam affect nitric oxide levels, but it also produced decreases in lung function measured by spirometry. This is something that has not been observed for electronic cigarettes.

Facebook’s actual contains none of these, only general statements that “we may use the information we receive about you … for internal operations, including troubleshooting, data analysis, testing, research and service improvement.” and “We give your information to the people and companies that help us provide, understand and improve the services we offer. For example, we may use outside vendors to … conduct and publish research.” Neither of these comes close to a “description of the procedures to be followed” or a “description of any reasonably foreseeable risks or discomforts,” and the Data Use Policy doesn’t even attempt to offer a contact for questions or an opt-out."

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