Captain Planet is a show about a environmentalist super hero who can only be summoned by five kids with five special rings!
And each ring had its own power. There was earth (which made the earth rise up and hit things) fire (which shot fire out of the ring like a flame thrower) water (which moved water so waves could rise up and splash things, yeah I thought it should blast out of the ring like a hose but anyway!) wind (which caused tornados) and heart (which allowed the wearer of the ring to understand things telepathically.)
I always thought Heart didn't belong with the other four forces of nature. Heart as a thing we all have, pumps blood! It doesn't have telepathic abilities! And heart in the abstract way is about love and compassion not telepathy and communication! That's the brains department. The fifth element of nature shouldn't be heart it should be brain!
But then again watching the show its obvious the creative staff didn't know what a brain is.