All athletes should be aware of the symptoms of over-training. These include fatigue and cumulative exhaustion, insomnia, depression, fits of anger, constant low-grade fevers and frequent infections. Frequently body builders find themselves driven instead of choosing to do what is appropriate.
One of the key signs of over-training is an elevated or depressed resting heart rate. Hormonal imbalance can also result from over-training. For women this causes a deep voice. For men it can cause impotence.
Perhaps the most important aspect of professional body building is cycling and cross training. Time off is needed from vigorous exercise routines for the body and mind to rest and recover. Nutritional and other supplements should also be cycled, particularly if they are taken in large quantities.
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