1 The word gun is a noun, but can be used as a verb when you âgun someone down.â Verbing a noun can add spice and drama to an otherwise bland sentence. 2  Experiment with nouns to find one that works well with the verbing process.
As another poster mentioned, depression is a cause of laziness. But let's not forget procrastination. While not officially recognized as a mental disorder, in some people procrastination is both a cause and effect of laziness. Certian people cannot prioritize correctly, to the point I've read many cases where a person will simply always make their priorities come second, mentally speaking.
The Migraine Trust says cluster headaches are more common in heavy smokers. Allergy to smoke as well as odour sensitivity can also cause migraine headaches in some people. By avoiding situations or places where smoking occurs, headaches may be avoided. Stress levels are lower once a person eventually stops smoking and oxygen levels are improved in the body for a clearer mind. The increase in oxygen makes ex-smokers less tired and also less likely to suffer a headache.