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Over Doing It
In the last few years athletes have had more targeted training and better nutrition and
clothing. But are some athletes attempting to do more than their body can physically
tolerate? This is known as `overtraining'. `Burnour' symptoms due to overtraining can persist
for weeks/months. Symptoms include immune…

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The inflammatory response occurs in muscles due to damage to muscle fibres caused by
heavy exercise; this may reduce the available non-specific immune response against upper
respiratory tract infections.

Both physical exercise and psychological stress cause secretion of hormones such as
adrenaline and cortisol (secreted by the adrenal glands) ­…

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