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>
I think it is B i could be wrong tho
Anitianxiety medications such as valium and xanax, work by increasing GABA activity in the brain.
I hope this helps.
Answer:and found only in the heart Explanation:
