Why your heart occasionally skips a beat

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBq3kzU.img?h=100&w=100&m=6&q=60&o=f&l=f&x=1333&y=766Every so often, you might feel like your heart skips a beat. Itâ??s called a palpitation, and the beat that follows can feel intense.

أكثر... (http://www.msn.com/en-in/health/medical/why-your-heart-occasionally-skips-a-beat/ar-AAgw9EX?li=AAgg4jn&srcref=rss)