Question:Which substance can cause a burning sensation in muscles that are worked intensely?
Answer:Lactic Acids.
I listen to the answer that was here before this one and I quickly found that it was wrong and it was indeed lactic acids. I hope this helps, if not you then other people who might stumble upon this question like how I did.
Thanks and have a nice day.
The action of breathing. :-)
Answer:
Healthcare workers, fda website
Explanation:
