E
EasterJoy
Guest
An interesting science article (I think):
pubmedcentral.nih.gov/articlerender.fcgi?artid=1524743
This is one of several articles noting that wearing very concealing clothing can lead to a deficiency in Vitamin D, which the body photosynthesizes in the presence of sunlight. Other articles I have read noted an increase in vitamin D deficiency among the women and children in groups in which clothing covers the arms and legs completely.
It is difficult to get sufficient vitamin D from dietary sources alone (that is, without sunlight), and there is increasing evidence that the old daily requirement of 400 IU is too low. Sunlight has the advantage of being a source of vitamin D that does not cause toxicity, as the body only makes what it needs.
A few other notes that I have turned up elsewhere:
It only takes 15-30 minutes of daily sun exposure for the body to make sufficient Vitamin D; about 1/4 of the amount which will result in redness of the skin in absence of sunscreen. Dermatologists are anxious to point out that sunlight in excess of that needed to manufacture Vitamin D only increases the risk of skin cancers.
Sunscreen also blocks UVB rays, those needed to make Vitamin D; there are now sunlamps which provide UVB, but not UVA (which causes tanning).
People living north or south of the 40th parallels will not get sufficient UVB in the cooler months (September through May, roughly, although it gets worse as one gets closer to the poles) because of the angle of the sun. This may be responsible in part for the symptoms of seasonal depression.
Insufficient Vitamin D can cause osteoporosis, mood swings, symptoms of depression, and muscle fatigue, among other symptoms. Vitamin D levels are particularly a concern for postmenupausal women. It is not uncommon for Vitamin D insufficiency to go undiagnosed for some time. Vitamin D levels can be tested via a standard Western-medicine blood test.
I’m not a doctor, and this isn’t medical advice. If you are indoors a lot, though, and conceal yourself when you do go out, or live at the more extreme latitudes during their dark months, this is just something to keep in mind, particularly if you are having tiredness, aches, or mood problems. These problems should not be simply dismissed as the effects of old age, regardless of age. Such problems, if investigated, can often be addressed.
In other news, female Bagladeshi teens living in the UK who wore the traditional clothing of their ethnic group had better mental health than their female Bangladeshi peers who adopted “Western” clothing, regardless of whether they had a mix of friends of different cultures or only friends from their own cultural background.
thaindian.com/newsportal/india-news/wearing-ethnic-clothes-keeps-teens-mentally-healthy_10038083.html
All very interesting, I think!
pubmedcentral.nih.gov/articlerender.fcgi?artid=1524743
This is one of several articles noting that wearing very concealing clothing can lead to a deficiency in Vitamin D, which the body photosynthesizes in the presence of sunlight. Other articles I have read noted an increase in vitamin D deficiency among the women and children in groups in which clothing covers the arms and legs completely.
It is difficult to get sufficient vitamin D from dietary sources alone (that is, without sunlight), and there is increasing evidence that the old daily requirement of 400 IU is too low. Sunlight has the advantage of being a source of vitamin D that does not cause toxicity, as the body only makes what it needs.
A few other notes that I have turned up elsewhere:
It only takes 15-30 minutes of daily sun exposure for the body to make sufficient Vitamin D; about 1/4 of the amount which will result in redness of the skin in absence of sunscreen. Dermatologists are anxious to point out that sunlight in excess of that needed to manufacture Vitamin D only increases the risk of skin cancers.
Sunscreen also blocks UVB rays, those needed to make Vitamin D; there are now sunlamps which provide UVB, but not UVA (which causes tanning).
People living north or south of the 40th parallels will not get sufficient UVB in the cooler months (September through May, roughly, although it gets worse as one gets closer to the poles) because of the angle of the sun. This may be responsible in part for the symptoms of seasonal depression.
Insufficient Vitamin D can cause osteoporosis, mood swings, symptoms of depression, and muscle fatigue, among other symptoms. Vitamin D levels are particularly a concern for postmenupausal women. It is not uncommon for Vitamin D insufficiency to go undiagnosed for some time. Vitamin D levels can be tested via a standard Western-medicine blood test.
I’m not a doctor, and this isn’t medical advice. If you are indoors a lot, though, and conceal yourself when you do go out, or live at the more extreme latitudes during their dark months, this is just something to keep in mind, particularly if you are having tiredness, aches, or mood problems. These problems should not be simply dismissed as the effects of old age, regardless of age. Such problems, if investigated, can often be addressed.
In other news, female Bagladeshi teens living in the UK who wore the traditional clothing of their ethnic group had better mental health than their female Bangladeshi peers who adopted “Western” clothing, regardless of whether they had a mix of friends of different cultures or only friends from their own cultural background.
thaindian.com/newsportal/india-news/wearing-ethnic-clothes-keeps-teens-mentally-healthy_10038083.html
All very interesting, I think!