|
|
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
![Shy children often have a high arousal level in novel social situations. Over time, parents can help ...](https://biology-forums.com/gallery/47/medium_667187_21_02_17_4_33_06_255831304.png)
![One target for expanding medical services involves vaccinations. Only 78 percent of children ages 19 ...](https://biology-forums.com/gallery/47/medium_667187_21_02_17_5_23_23_25607561.png)