Prisoners at a maximum security facility in the U.S. are guaranteed 2 hours of outdoor time daily, whereas 1 out of 2 kids worldwide spends less than an hour outside. Children spend less time outside each day than prison inmates do in the United States. Inmates are guaranteed two hours of outdoor time daily, whereas one in two children is outside for less than an hour. A recent survey of 12,000 parents in 10 countries, who have children aged five to 12, found that one-third of kids spend under 30 minutes outside each day.
The prostaglandins (PG) are a group of physiologically active lipid compounds having diverse hormone-like effects in animals. Prostaglandins have been found in almost every tissue in humans and other animals. They are derived enzymatically from fatty acids. Every prostaglandin contains 20 carbon atoms, including a 5-carbon ring. They are a subclass of eicosanoids and of the prostanoid class of fatty acid derivatives.
What Are the Functions of Prostaglandin? Prostaglandins are hormone-like chemicals that synthesize within the cells of the human body. There are 10 known prostaglandin receptors located on various tissues that help process prostaglandins. The receptors allow prostaglandins to act on a wide range and type of cells. Prostaglandins have a short functional life and are either locally active or act on the same cell within which they are synthesized. The major types of prostaglandins include PGI2, PGE2 and PGF2?, each performing different functions.