Being healthy does not just mean eating right and going to the gym. Our individual health depends on a number of factors and it is important for us to pay close attention. Regular check-ups are important and knowledge of changes in medicine and in healthy living standards.
I've written here about leukemia and other cancers and about AIDS, and although I'm not a doctor (and certainly am not trying to be everyone's mother), but we should all know a little about the many diseases that exist, not to diagnose ourselves, but to be aware when something in our body just isn't right. Early detection is often the key with many things that can attack us. If we want to change the world, we need to have the strength and energy to do it!
Being healthy leads to being happy. If our bodies feel good, our minds will likely join in! Eat your fruits and vegetables and get plenty of exercise, but don't stop there.