> The researchers found that each person’s self-reported stress level corresponded to the noise level of the flying car. As the noise increased, the participant

> The researchers found that each person’s self-reported stress level corresponded to the noise level of the flying car. As the noise increased, the participants reported greater stress. When the noise level decreased, they reported lower stress levels. However, brain activity data showed a different pattern. As predicted, when the noise level increased for the first time in the experiment, the EEG data showed higher levels of stress among the participants. But once the participants were exposed to loud noise, their stress levels did not decrease - even after the noise level dropped. This may suggest that while most people think they can become accustomed to loud noise, it may actually be causing them stress without noticing it