Researchers say in a UCLA School of Nursing study that men who ride bicycles may experience hormonal imbalances.

Men who ride bicycles may experience hormonal imbalances that could affect their reproductive health, researchers say in a UCLA School of Nursing study released today.

To date, an extensive amount of research has been performed documenting the positive effects of long-term exercise on health, according to a nursing school statement.

These studies have shown that while moderate exercise can lead to enhanced cardiovascular and metabolic function and reduced body fat, ultra-endurance levels of exercise can also adversely affect the neuroendocrine system and reproductive health,” the statement said.

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