smoking
"Both produce toxic gases and particulates, along with carbon dioxide. Both are harmful to human health and welfare; the number of people who die yearly from each worldwide is estimated to be 5 million or more."
"Smoking is like a chimney. The tar builds up and causes a back draft which leads to a cough. Smoking is like sitting in a car with a blocked exhaust system."
"Smoking tobacco is like taking a shitload of x-rays to the chest. Even smokeless tobacco causes cancer. Weed doesn't. Same goes for heart disease, which is linked to tobacco but not weed."

METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.