What inspired me to writing this article was my little belly fat(smiles). I started doing my research on the best exercise that could reduce my belly fat, because you can spend weeks doing the wrong exercise and seeing no effect, along the way I started seeing the benefits of exercise, it literally blew my mind away, I didn't know of these much benefits, so i dug in. It took me about 12 days to come up with this article, and I watched about 20 Youtube videos and read a lot of articles that I lost count, why? because I wanted to publish an article that would convince people that exercise is not only good for our body but the best thing we could do to our brain. So I might have come across that video, honestly I don't know.
And about the length, I'm not a fan of parts, but I guess I would try it next time(smiles). Yea, I'm doing exercise for my mental health and also for body, I gat to get that six packs abs(hahaha) but I do more of aerobic than strength exercise.

Thanks a lot for reading through and contributing @chloroform