Supraventricular tachycardia: it's defined as having a faster-then-normal heartbeat. there's many causes such as thyroid disease, caffeine, medications, or even stress.
Sinus tachycardia: it's a sinus rhythm with an elevated rate of pulses with a rate greater than 100 beats/min
<em>Hope this helps! :)</em>
To take deep breaths until breathing is back to normal. <span />
Body odor would cause bacteria to sit on areas of the skin
