Why are bad habits so hard to kick?

Why are bad habits so hard to drop? Are we in a new industrial revolution? Why don’t some islands have snakes? How do drugs know where to go? Would fireworks work on Mars? Which foods cause inflammation? Why can’t we harness power from the Earth’s magnetic field? How do bacteria that cause sepsis get into the body in the first place? What are the effects of steroids? How do facemasks affect learning development in children? Dr Chris and Clarence Ford have the answers…