No offence but i can see why you are asking this question. The question should be phrased "Does writing make you smarter" and in response to this i would suggest Yes, although reading is also very important in giving you intellectual phrases to use improving people's perception of your mind, making you smarter.
They make you smarter and more skilled in reading/writing as well as your school performance in academics.
Yes it does make you smarter
Yes.And It's make you smarter and happier.
some scientist have concluded that if you play a musical instrument it can make you smarter..it has not been proven,but in my opinion i think it does make you smarter.
Some video games can make you smarter but not all of them. Most tend to make you dumber. Video games like "Are You Smarter Than A 5th Grader" may make you smarter. It depends on if you intend to learn from them.
Drugs will not make you smarter. There are no medications that improve your brain.
yes.anything that involves brain work makes you smarter.
No smoking doesn't make you smarter because it kills your brain cells
Well, at the very least it shows that the breastfeeding mother is smarter.
Yes, if you smell it.
yes
Chewing gum does not make you smarter, but you might as well give it a shot anyway since you posted this under Styles of Music.