Chemicals in deodorants and perfumes can trigger lung and kidney problems while those in body lotion may cause hormonal disruption.

—脱色剂和香水里的化学物质会引起肺和肾脏问题，而润体乳里的则可能导致激素紊乱。

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Many women at this stage due to hormonal and endocrine unstable, prone to some skin problems, itching, dryness to follow.

很多女性在此阶段由于激素水平及内分泌不稳定，极易出现一些皮肤问题，瘙痒、干燥就随之而来。

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Other illnesses including heart disease, Alzheimer's disease and hormonal problems can also disturb the normal pattern of sleep.

BBC: High sleeping pill use 'worrying'

Dr. Amy Evans, a pediatrician and medical director of the Center for Breastfeeding Medicine in Fresno, California, says that as many as 5% of all women have underlying medical conditions that prevent or seriously hinder lactation: hypoplasia, thyroid problems, hormonal imbalances and insufficient glandular tissue, among others.

CNN: Is the medical community failing breast-feeding moms?