According to a study published Monday in Nature Cardiovascular Research, COVID-19 and mRNA COVID-19 vaccines are linked to postural orthostatic tachycardia syndrome, or POTS, a debilitating autonomic nervous system disorder.

POTS symptoms include an elevated heart rate, dizziness, heart palpitations, fainting, lightheadedness, headaches, chest pain, brain fog, anxiety, depression and fatigue, among others.

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