Clinical Definition The small intestine is a 22-foot-long tube that breaks down food and consists of three segments, including the jejunum. The jejunum lies between the duodenum (i.e., the upper part of the small intestine) and the final section, known as the ileum. Along with the ileum, the jejunum is mainly responsible for nutrients being…
Jet lag
Clinical Definition Jet lag, also called time zone change syndrome, is a sleep disorder affecting travelers who cross several time zones. It can occur when the body’s biological clock becomes out of sync with the local time, and as a result those affected may be afflicted with insomnia, daytime sleepiness, moodiness, reduced performance and other…