TWICE Jeongyeon Regains Health Thanks to Older Sister Gong Seung-yeon — What Is Cushing's Syndrome?
TWICE's Jeongyeon reveals she overcame Cushing's syndrome thanks to sister Gong Seung-yeon's timely advice, sharing her story on You Quiz on the Block.
Girl group TWICE's Jeongyeon has revealed the story of how she regained her health thanks to her older sister, actress Gong Seung-yeon.

It has been revealed through the tvN variety program "You Quiz on the Block" that TWICE's Jeongyeon had once suffered from serious health problems due to Cushing's syndrome.
On the 17th, a preview for the episode airing on the 20th was posted on the official "You Quiz" account, with the message: "Gong Seung-yeon, who was always by Jeongyeon's side and a pillar of support during her most difficult times."
Recalling when she first noticed something was wrong with her health, Jeongyeon expressed her gratitude toward her sister, saying that actress Gong Seung-yeon had strongly encouraged her to visit a hospital after suggesting it could be Cushing's syndrome, and that thanks to this, she was fortunately able to regain her health.
As a result, many people have been expressing keen interest in Cushing's syndrome.
Cushing's syndrome is a condition that occurs when the adrenal glands produce an excess of glucocorticoids, or when a large amount of glucocorticoids enters the body from an external source. Glucocorticoids are hormones produced by the adrenal glands, and excessive exposure is said to cause a variety of physical symptoms.
The most readily noticeable symptoms are the face becoming round and puffy like a full moon, fat accumulating in the neck and abdomen while the limbs grow thinner — a condition known as central obesity. Accompanying symptoms include high blood pressure, high blood sugar, osteoporosis, and muscle weakness. Additionally, acne may appear, excess hair growth (hirsutism) may occur, the skin may become thin, and bruising may happen easily. Sexual dysfunction can also develop, and one may experience depression, anxiety, and fatigue.
Gong Seung-yeon recognized Cushing's syndrome when she noticed Jeongyeon's excessive weight gain. Jeongyeon subsequently underwent treatment and dieting, ultimately regaining her normal health.