Whether or not you are a motorbike-taxi driver in Hengyang, sufficient sleep is an important part of a healthy work-life balance.
Some people are more flexible in where they can get it.
Some people are more flexible in where they can get it.
A recent study conducted by seven Chinese hospitals across five cities found that more than half of the Chinese population suffers from the same problem. The study measured vitamin levels in more than 2,000 volunteers and found that only about 5% of participants had healthy levels of Vitamin D, which is crucial for strong bones and a healthy immune system. That’s compared to about 67% of the U.S. population whose Vitamin D levels are deemed sufficient, according to a 2011 Centers for Disease Control and Prevention report.In a fact sheet for health professionals, the National Institutes of Health in the U.S. explains the important connection between sun exposure and vitamin D:
Most people meet at least some of their vitamin D needs through exposure to sunlight. Ultraviolet (UV) B radiation with a wavelength of 290–320 nanometers penetrates uncovered skin and converts cutaneous 7-dehydrocholesterol to previtamin D3, which in turn becomes vitamin D3. Season, time of day, length of day, cloud cover, smog, skin melanin content, and sunscreen are among the factors that affect UV radiation exposure and vitamin D synthesis. Perhaps surprisingly, geographic latitude does not consistently predict average serum 25(OH)D levels in a population. Ample opportunities exist to form vitamin D (and store it in the liver and fat) from exposure to sunlight during the spring, summer, and fall months even in the far north latitudes.Unsurprisingly, the researchers in China suggest people spending less time outdoors and high levels of smog as causes for the large number of people with a vitamin D deficiency. But a possible contributing factor not discussed in the journal article exists as well.
Complete cloud cover reduces UV energy by 50%; shade (including that produced by severe pollution) reduces it by 60%. UVB radiation does not penetrate glass, so exposure to sunshine indoors through a window does not produce vitamin D. Sunscreens with a sun protection factor (SPF) of 8 or more appear to block vitamin D-producing UV rays.
I moved to the side just in time. |
Advertisement for skin whitening cream which previously appeared in a set of scenes from Shenzhen |
[A Colorado mother] packed her 5-year-old daughter a ham and cheese sandwich, string cheese and a 4-pack of Oreos on Friday. The child came back home from Children's Academy with the Oreos and a note from her teacher which read, in part:I am not sure about the statute of limitations in such cases, so to avoid any potential jail time for my mother I will refrain from sharing details of my own snacks as a child.
"Dear Parents, it is very important that all students have a nutritious lunch. This is a public school setting and all children are required to have a fruit, a vegetable and a heavy snack from home, along with a milk. If they have potatoes, the child will also need bread to go along with it. Lunchables, chips, fruit snacks, and peanut butter are not considered to be a healthy snack. This is a very important part of our program and we need everyone's participation."The child said her teacher didn't allow her to eat the cookies during lunch, because they don't have enough nutritional value.