|
|
Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
There are more nerve cells in one human brain than there are stars in the Milky Way.
The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.
![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)
![James A. Garfield lies mortally wounded. After failing to locate the bullet, surgeons called in Alex](https://biology-forums.com/gallery/47/medium_376716_26_08_15_11_16_34_224422432.jpeg)