It turns out that the popular notion that the use of tobacco will prevent corpulency is a deception, except when it interferes with healthy nutrition. On the contrary, Dr. Child says that a very gentle effect of its use is fatty degeneration of the muscles, especially those of the heart. Persons whose systems are saturated with tobacco are very slow in recovering from sprains or bruises of the muscles, nor do they bear surgical operations well. But the most serious effect is “tobacco heart,” which is a rupture of this organ from the deposit of fat cells in the fibres of the muscles, which destroy their integrity, and is immediately fatal. It occurs mostly in young persons. Another effect of tobacco is a tendency to produce cancerous affections. Fat is the lowest healthy tissue; its uses being to store up the means of nourishment. As for the effects of tobacco on human endurance it is well known to athletes, who are never allowed to use the weed or alcohol when under training, and in confirmation of the wisdom of this precaution, Edward Hanlan, the champion sculler of the world, says: “In my opinion the best physical performances can only be secured through the absolute abstinence from the use of alcohol and tobacco. I believe that the use of liquor and tobacco has a most injurious effect upon the system of an athlete by irritating the vitals and consequently weakening the system.”