A fibrous path 'twixt heart and brain may make you swoon
A newly discovered pathway between the heart and brain can cause fainting, at least in mice.
regain consciousness
Another COVID-19 Medical Mystery: Patients Come Off Ventilator But Linger In A Coma
Doctors are researching why some patients remain unconscious for days or weeks, even after sedating drugs are withdrawn. They also worry that these patients aren't being given time to recover.