"Many persons who are not by habit 'dreamers,' are dreaming a great deal just now, and wondering why they do so. The answer is very simple. When cold weather sets in suddenly, and is much felt; at night, the head, which is uncovered, has the blood supplied to it driven from the surface to the deep parts, notably the brain, the organ of the mind. The results are light sleep and dreams. The obvious remedy is to wear a nightcap, or wrap the head warmly, at least while the cold weather lasts. It is a 'faculty' idea that we of this generation suffer more from braintroubles than our predecessors because we leave the head exposed at night, and the blood-vessels of our cerebral organs are seldom unloaded."