|
|
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
![The frontal sinus, an airfilled space just behind the brow, is a unique size and shape in each of us](https://biology-forums.com/gallery/47/medium_273688_23_02_15_8_21_34_20906871.jpeg)
![Steps in protein synthesis: The DNA is used as a template to make mRNA (transcription). The mRNA is ...](https://biology-forums.com/gallery/28/medium_482573_29_04_17_4_33_51_28687556.jpeg)