Figure out time interval issue 

From what I remember, the time interval is off in between samples. This makes it seem like the heart is beating much faster (tachycardic) than it actually is. 

1) I'll speak to Javier about this. 

2) I also bought an AliveCor Mobile ECG Case (http://store.alivecor.com/products/3rd-generation-alivecor-heart-monitor-with-case-for-iphone-6) so we can compare the data from our EKG with theirs. 
