|
|
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
The horizontal fraction bar was introduced by the Arabs.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.
![Parents who grew up in dual-earner families are more apt to share household tasks equally than those ...](https://biology-forums.com/gallery/47/medium_660365_23_12_16_3_52_08_243692347.jpeg)
![Many European Americans are involved in ethnic work, attempting to maintain an identity more precise ...](https://biology-forums.com/gallery/27/medium_660366_14_04_17_2_13_59_27756691.png)