|
|
If you could remove all of your skin, it would weigh up to 5 pounds.
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.
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.
![Older adults may grieve intensely over the loss of a person or situation that has been a part of the](https://biology-forums.com/gallery/47/medium_18099_25_09_12_12_17_57.jpeg)
![Edward Bellamy, author of the utopian novel Looking Backward (1888) Bellamy’s socialism worried many](https://biology-forums.com/gallery/47/medium_27_24_08_15_1_27_04_223942387.jpeg)