Answer: 3 - nervous, but I’ve studied and comprehended enough that I’m slightly more comfortable.
Explanation:
There's no multiple choice so I'll just write what I think it is, which is that they all have negative effects on the brain
A is the answer I hope this helps
The sympathetic nervous system causes a speeding up of bodily functions (i.e. heart & respiratory rates) & protects the core by shunting blood from the extremities to the core !! hope this helps hun. have a great day ☺️
Isometric means “equal measure” The muscle fiber length remains the same when muscular tension is exerted against a fixed resistance
