Well, you don't exactly comment per se. You click "answer" or go to someone else's answer and click reply (not sure the exact labelling but it's something along those lines).
Edit: It says "add your comment to this answer here", not "reply."
Answer:
People are getting on trains back to Mexico, because they were rejected at the border.
Explanation:
The principles of specificity, progression, overload, adaptation, and reversibility are why practicing frequently and consistently are so important if you want to improve your performance.
Answer:
Body Image:
What is you opinion on the amount of daily exercise teens require?
About how many people are physically fit in the United States?
Hormonal and chemical changes in teens:
Do teens have proper growth in terms of hormones like testosterone and estrogen?
Are hormones in teens nowadays in proportion as they should be or is drug use affecting this abnormally?
Gender Development Issues:
Are newborns nowadays born with more or less genetic mutations than 30 years ago?
Is there a correlation between substance abuse in adults and gender development issues in their kids?