Question

eva has been unable to sleep lately, and she notices that her attention span has decreased significantly. she has also noticed that she seems to become overstimulated and overexcited in certain situations. after explaining these symptoms to her primary care physician, he suggests she might be suffering from an ______.
underactive thyroid gland
overactive thyroid gland
overactive pituitary gland
underactive pituitary gland

Explanation:

An overactive thyroid gland (hyperthyroidism) can cause symptoms like difficulty sleeping, decreased attention - span, and being overstimulated. Underactive thyroid causes fatigue and sluggishness, overactive pituitary has different symptoms like gigantism or acromegaly in adults, and underactive pituitary can cause hormonal imbalances not matching these symptoms.

Answer:

B. overactive thyroid gland