|
|
If you could remove all of your skin, it would weigh up to 5 pounds.
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
![The actions of Frzb and the Frizzled receptor protein show how embryonic development represents a ba](https://biology-forums.com/gallery/47/medium_33_01_08_11_10_42_44_12972137.jpeg)
![Each subculture provides its members with values and distinctive ways of viewing the world. What ...](https://biology-forums.com/gallery/47/medium_632960_15_11_16_11_35_18_241211336.png)