|
|
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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.
![Timing of teratogens. Vulnerability to teratogens is greatest in the embryonic period. Source: Moore](https://biology-forums.com/gallery/47/medium_351728_31_05_15_9_12_12_219982425.jpeg)
![When young infants hold objects for a long period of time they eventually become habituated to them.](https://biology-forums.com/gallery/47/medium_637842_18_01_17_6_02_54_245021528.png)