If you're basing this question on the common urban legend that we only use 10% of our brain, then the answer is no. Both geniuses and normal humans use 100% of their brains. You can't remove 90% of a brain's mass and have a person still work the same way. There is no dead space. Brains are expensive, evolution wouldn't allow such an expensive thing to exist if it could get the same out of something a tenth the cost.
Other causes of palpitations include: 1  Anemia. 2  Exercise. 3  Fever. 4  Hypoglycemia (low blood sugar). 5  Perimenopause. 6  Trauma.
Yet panic attacks and anxiety themselves do not account for all of the palpitations. 1  That's because palpitations may also occur for reasons unrelated to anxiety, but still affected by anxiety. For example: 2  Caffeine Caffeine is known to cause heart palpitations. It's likely that those with anxiety are either more prone to these palpitations, or more prone to noticing them and thus amplifying their effects. Alcohol and Nicotine Both alcohol and nicotine may also cause heart palpitations.