Create 15 short descriptions and 15 long (400 characters) for website

This is a straight forward job and easy 10 rating and must be done fast and well for quick cash. Please only people who can write clear English bid on this project. I'm looking for 15 short descriptions for a website and 15 long, 400-500 characters no more no less. Here is an e.g. of the short description: *'Looking to improve memory? The free website [login to view URL] has comprehensive articles and an audio course.'* Here is an e.g. of a long description which must be between 400-500 characters: *'If you enjoy learning you probably hate forgetting! Unfortunately memory loss is something we all have in common but there are ways we can improve this. Improve memory hub has sole purpose is to help people with memory loss. They have created an interactive audio course and articles with the intention of helping people improve their memory. This free website has been put together with care and using those most modern memory improvement technique.'* The idea is to create a bit of an intro and a bit about the free memory website [login to view URL] . The keyword that has to be in each text is "improve memory" and is to fit in the text nicely without it sounding awkward.