is soon followed by breathlessness, and soon by a feeling of fulness
in the head, and then syncope. The heart, of course, becomes
dilated. Heart murmurs are often found after much less severe
exertion than boat racing. They may not last long, or they may
disappear under proper treatment. He reported that after exercise
there were heart murmurs in seventy-four of 266 young men who were
in normal health, and that nearly 28 per cent of all normal young
men will show a murmur after exercise. He thinks that it is rare to
find, after a week, a heart murmur in a previously healthy heart, if
the athlete has not passed the age of 30.

There can be no doubt that even one, to say nothing of more, such
heart strains is inexcusable and may leave a more or less lasting
injury. Such heart strains and exertions are not entirely seen in
athletes. A man otherwise well may cause such a heart strain by
cranking his automobile, by pumping up a tire, by strenuous lifting,
by carrying a load too far or too rapidly, or by running, and an
elderly man may even cause such a heart strain by walking, hill
climbing, or even golfing, if he does these things. More or less
acute dilatation occurring in such persons is likely to recur on the
least exertion, unless the patient takes a prolonged rest cure and
the heart is so well that it recuperates perfectly. Any chronic
myocarditis, however, may prevent such a heart from ever being as
perfect as it was before.

Torgersen, [Footnote: Torgersen: Norsk Mag. f. Laegevidensk., April,
1914.] after making 600 examinations of 200 athletes, and 1,200
examinations of members of the rowing crew, decides that it is
absolutely essential that there should be skilled daily examinations
of every man during training, and a record kept of the condition of