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What is the role of the endocrine system in the human body?

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The endocrine system sends and receives chemical signals called hormones, which regulate various bodily functions.

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What is a toxicant?

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A toxicant is any substance that poses a chemical hazard to human health or the environment.

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Why are infants more sensitive to environmental hazards?

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Infants have developing systems that make them more vulnerable to the effects of environmental hazards compared to adults.

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What does toxicology study?

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Toxicology deals with the study of the effects of chemical and physical agents on living organisms.

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What is risk assessment in environmental health?

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Risk assessment is the process of measuring the likelihood that an environmental hazard will cause harm.

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What are some examples of chemical hazards?

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Examples of chemical hazards include pesticides, heavy metals, and industrial chemicals.

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How can environmental hazards affect human health?

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Environmental hazards can lead to various health issues, including respiratory problems, cancer, and developmental disorders.

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What is the difference between a hazard and a risk?

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A hazard is a potential source of harm, while risk is the likelihood that the hazard will cause harm.

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What factors influence the impact of environmental hazards on health?

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Factors include the type of hazard, exposure level, duration of exposure, and individual susceptibility.

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What is the significance of dose-response relationships in toxicology?

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Dose-response relationships help determine the level of exposure to a toxicant that results in harmful effects.