Fainting can be a scary thing, but it is also individual. People who are prone to fainting may be triggered by the sight of blood or a sudden surprise. Some people will faint upon seeing something shocking or gruesome. Other people have never experienced fainting so the first time may be frightening— and indicative of a greater health concern.


Syncope—also called fainting, or passing out—is a sudden loss of consciousness. It can happen due to changes in the nervous system and the circulatory system and is a result of a temporary drop in the amount of blood and oxygen reaching the brain.


How do you know if your fainting spell was a sign of a more significant health concern? These ten signs can help you figure it out.

1. Fainting during or after heart palpitations

Heart palpitations feel like extra strong heart beats or a fluttering in your chest. Rapid heart beat can cause your blood pressure to drop, which may lead to fainting. You may also experience heart palpitations if your blood sugar is too low, which can be dangerous. This is more common among people with diabetes who take medicine to increase insulin levels in the body.


  • Heart palpitations followed by fainting may be a sign of:
  • Low Blood Sugar
  • High Blood Pressure
  • Cardiovascular disease
  • Dehydration
  • Heat Exhaustion
  • Panic or Anxiety Disorder