High blood pressure is often called "the silent killer" because it usually has no symptoms. Now new research shows most African-Americans will develop high blood pressure in middle age, putting them at greater risk of heart disease and other serious health problems.
Tracy Johnson was 46 when she was diagnosed. Five years ago, she was at work when she suddenly felt extremely warm.
"The nurse on the site checked my blood pressure and it was 220 over 120 and they sent me straight to the ER," Johnson told CBS News.
Johnson learned that she had hypertension, or high blood pressure, which runs in her family. New research in the Journal of the American Heart Association shows 75 percent of African-American men and women are likely to develop high blood pressure by age 55. That's compared to 55 percent of white men and 40 percent of white women.
We can take celery to control and control blood pressure through regular diet. It occurs naturally in a variety of fruits, vegetables, spices and herbs and is abundantly found in chamomile, which is the prime source for its extraction. The content of apigenin extracted from chamomile can reach 98%.
Appearance: Yellow needle crystal
Effective component: 98%
Detection method: HPLC
CAS NO.: 520-36-5
Melting point: 345-350 ℃
Molecular and molecular weight：C15H10O5; 270.25
Solubility：is almost insoluble in water, partially soluble in hot alcohol and soluble in dilute KOH solution.
Apigenin can inhibit the proliferation of vascular smooth muscle cells, and the abnormal proliferation of vascular smooth muscle cells is an important cause of atherosclerosis and other vascular diseases, which means that apigenin plays an important role in preventing vascular diseases such as hypertension and atherosclerosis.