Complex sentence: Vasovagal (situational) syncope is one of the most common types which may occur in response to any of a variety of triggers, such as scary, embarrassing or uneasy situations, during blood drawing, or moments of unusually high stress.
Split into simpler sentences: Vasovagal (situational) syncope is one of the most common types. It occurs in response to any of a variety of triggers, such as scary, embarrassing or uneasy situations, during blood drawing, or moments of unusually high stress.