Severe pain in the chest due to impaired blood supply to the heart muscle because a coronary artery is narrowed. Faintness and difficulty in breathing accompany the pain. Treatment is by drugs such as nitroglycerin and amyl nitrate or bypass surgery.
Initially the sun and moon had human faces, but they were removed when the flag was updated in 1962. The flag is said to express the hope that Nepal will endure as long as the sun and the moon. The blue border symbolizes peace. Effective date: 16 December 1962.