Chase has had difficulty sleeping recently and gets frequent sinus headaches. he discovered that he is squinting more when he reads. his grades at school have also been dropping. which symptom might warrant a trip to an eye specialist? difficulty sleeping, falling grades in school, frequent sinus headaches, or squinting more while reading?

Squinting more while reading. He does this because of the strain on his eyes to read.

There are eight major endocrine glands, each with a different function: pituitary gland: the “brain” of the endocrine system; regulates all seven of the other glands and secretes growth hormone.thyroid: regulates a person’s metabolic rate, which is the amount of energy expended daily by a person at rest.thymus: assists in the development of a person’s immune system.adrenal gland: regulates fluid and sodium balance within the body, and secretes epinephrine (“adrenaline”) when the body is under stress, producing the fight-or-flight response.ovaries (in females) and testes (in males): control the development of secondary sex characteristics.pancreatic islets: regulate blood sugar.pineal gland: regulates biorhythms and mood, and stimulates the onset of puberty.