Researchers found that compared with nondrinkers, those who drank relatively heavily had fewer "good" bacteria in their mouths. They were also hosting more "bad" bacteria -- including bugs that have been linked to gum disease, heart disease and cancer.
Anxiety can raise the risk for heart disease: Previous studies have shown that arterial stiffness may be worsened by traumatic life events, job strain, depression and either short-term or chronic anxiety, the researchers said.
The study from Germany found that the technology used to power the cars won't interfere with pacemakers or implantable defibrillators.
Essential tremor affects upwards of 7 million Americans, according to the American Academy of Neurology. Its cause is unknown, and there is no cure.
