Endocrine disorders like thyroid disease can cause irregular periods, too, as can polycystic ovary disease, a hormonal glitch that may lead to obesity, acne, and excessive hair growth.

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This can include second cancers, coronary artery disease, heart failure, lung problems and endocrine disorders (growth function and slow or delayed sexual development).

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An impartial evaluation showed that hospital admission rates were 7.4% lower for cardiovascular disease, 13.2% lower for cancers and 20.7% lower for endocrine and metabolic diseases for highly engaged members.

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