|
|
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Blood is approximately twice as thick as water because of the cells and other components found in it.