I have a Weiider machine from baaaaack in the day that I used to use. But then I nearly killed a nigger and went to prison instead of university. Long story but it was a must. In prison there were no weights or anything really so I just did pushups and this and that using my own body weight (forgot the name for that) pretty much so I wouldn't become sick. Can I make gains with this thing? I'm seeking good health not any great appearance. Or do I need free weights? If so, what should I buy? I was thinking I'd like a chin up bar. Alright, thank you.