|
|
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.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).
Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
![Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus](https://biology-forums.com/gallery/47/medium_46687_17_12_14_12_27_14_19605951.jpeg)
![Some scholars regard Walt Whitman as a poet of nature, and others, a poet of the body—a reference to](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_223021934.jpeg)
![In 1879 an army officer founded the Carlisle School in Pennsylvania to “civilize” young Indians. The](https://biology-forums.com/gallery/47/medium_376063_22_08_15_11_31_03_223782117.jpeg)