Vishal Gupta, MD, PhD trained as a medical resident in the department of internal medicine at Columbia University College of Physicians and Surgeons, New York City. He also performed fellowships at Columbia University in Gastroenterology and Harvard Medical School in Gerontology and earned a PhD in colon cancer at the University of South Carolina.

Unexplained shortness of breath, panting or the inability to take a deep breath may be warning signs of a heart attack, with or without chest pain. Call 911 if you experience these symptoms.