During an upright tilt, a person's cardiovascular system has to adjust in order to prevent a significant portion of the blood volume from pooling in the legs. These adjustments consist of a mild ...

Fainting or blacking out, also known as syncope, is a temporary loss of consciousness due to insufficient blood flow to the brain. Dreamstime/TNS You may have heard that people who feel faint should ...

Episodes of fainting are mostly dismissed as those due to stress, fatigue, or dehydration. Sometimes, even when you do not eat properly, you may feel unconscious, but doctors have a different take.

Melbourne, Australia - Contrary to some previous reports, new research involving twins suggests that genes probably do play an important role in vasovagal syncope (VVS) [1]. The new study, which ...