A sudden drop in blood pressure of just 20 mmHg, such as a change in systolic pressure from 100 mmHg to 80 mmHg could cause symptoms, and bigger drops could be related to a medical emergency.

Blood glucose levels drop during the night, ... Low blood sugar in the mornings, also known as morning hypoglycemia, can make people feel faint, light-headed, or confused.

DEAR DR. ROACH: I have been confused about what normal blood pressure is for me (or anyone). I know there are some issues on what normal is today, but let us say that normal is 120/80 mm Hg. Does ...

These symptoms can be confused with or mask the symptoms of low blood sugar. ... This will help reduce the risk that your blood sugar will drop too low. Alcohol and Diabetes FAQs.

Vasovagal syncope is caused by a sudden drop in blood pressure, often triggered by a reaction to something. This causes your heart to slow down for a short time.

Dear Dr. Roach: I have been confused about what normal blood pressure is for me (or anyone). I know there are some issues on what normal is today, but let us say that normal is 120/80 mm Hg. Does ...

Other companies are currently developing blood tests based on a single drop, but Snyder envisions his being conducted more regularly at home, rather than during an occasional doctor's visit.