It can cause massive long term brain damage such as having a foggy brain, some can also lead to problems with your eyesight. But most importantly if receiving a concussion before one is healed can cause severe brain swelling.
Herpes, HIV and HPV all don't have cures
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>
your answer is C. Peripheral nervous system (PNS)
