Answer:
No, Extreme sports can be very damaging to their bodies and can even harm their brains.
Step-by-step explanation:
In the essay, you can use the first paragraph for your thesis and your argument. In the second paragraph use information and maybe stats to back up your argument and the same for the third. For the 4th you can add the counterargument and state why you're against it. For the conclusion, you can restate your thesis and add a finishing sentence to conclude the essay. I can do some more research on it if you need any more help. Just say something in the comments so I can come back