In Cushing's syndrome, which hormone is responsible for the characteristic symptoms?
1) Cortisol
2) Thyroid hormones
3) Growth hormone
4) Insulin
📝 Explanation:
Cushing's syndrome is caused by prolonged exposure to high levels of cortisol, a hormone produced by the adrenal glands. Cortisol excess leads to symptoms such as moon facies, buffalo hump, truncal obesity, purple striae, and proximal muscle weakness, among others.