Lead exposure may affect male and female reproductive systems, including no sex drive.

Lead exposure may affect male and female reproductive systems, including no sex drive.

• A. No sex drive
• B. Increased fertility
• C. Hair loss
• D. High blood pressure

Answer: (A)

Lead exposure can disrupt the hormonal regulation of reproduction, affecting sexual desire. It can interfere with the hypothalamic–pituitary–gonadal axis, potentially lowering testosterone in men and altering hormonal balance in women, which can manifest as reduced libido. That direct impact on sexual drive is why the option describing no sex drive is the best match. Increased fertility would go against the toxic effects of lead on reproductive function. Hair loss can occur with heavy metal poisoning but isn’t a direct reproductive symptom, and high blood pressure is a cardiovascular effect, not a reproductive one.

Lead exposure can disrupt the hormonal regulation of reproduction, affecting sexual desire. It can interfere with the hypothalamic–pituitary–gonadal axis, potentially lowering testosterone in men and altering hormonal balance in women, which can manifest as reduced libido. That direct impact on sexual drive is why the option describing no sex drive is the best match. Increased fertility would go against the toxic effects of lead on reproductive function. Hair loss can occur with heavy metal poisoning but isn’t a direct reproductive symptom, and high blood pressure is a cardiovascular effect, not a reproductive one.