The anterior pituitary gland controls several key hormones that affect growth, energy, reproduction, and stress response. When it produces too much or too little of these hormones, many body systems are affected. Common causes include head injury, stroke, infection, or stress.
When the gland becomes overactive, it can cause problems such as too much growth hormone (acromegaly or gigantism), too much cortisol (Cushing’s disease), or too much prolactin (which can cause infertility or milk production). When it becomes underactive, symptoms may include fatigue, weight changes, infertility, or feeling cold and sluggish due to low thyroid and adrenal activity.
Doctors check hormone levels to find where the imbalance starts — in the pituitary, thyroid, or adrenal glands. Treatment may include replacing missing hormones, supporting adrenal function, and improving stress and nutrient balance.
Some natural compounds like zinc, magnesium, L-arginine, and herbal or glandular supplements may help support mild or temporary pituitary weakness.

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