Skin whitening: Strong bones need sun | Bangkok Post: learning

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Skin whitening: Strong bones need sun

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Thai women have Vitamin D deficiency. Build up much-needed vitamin D for bones by being outdoors in cool areas in morning & evening. 


Whitening fad a health risk for women


Online reporters

The obsession of many Thai women in avoiding the sun to ensure a white complexion could lead to a vitamin D deficiency and an increased risk of bone disease when they get older, according to a study by Chulalongkorn University.

Thanomwong Kritpet, a lecturer at Chulalongkorn University’s faculty of sport science, said a study of women aged 25-40 years showed that they had an average vitamin D level in their blood of only 20 nanogrammes per millilitre, which is below the minimum health standard of 30.

She attributed this low vitamin D level to the obsession of many women to have white skin. She said they avoid direct sunlight and outdoor activities, use sun block cream and wear clothing to protect them from the sun.

Many of them spend all their time indoors, further reducing the opportunity for their skin to be exposed to the sun.

She said exposure of the skin to sunlight stimulates the production of vitamin D in the body, which helps the absorption of calcium in the intestines into the blood. Vitamin D also helps slow the release of the parathyroid hormone which leaches calcium from the bone.

Ms Thanomwong said, the consequence is these women will face a higher risk of bone-related diseases such as brittle bone and osteoporosis when they get older.

She suggested women expose themselves to the sun in the morning and evening, when the rays are not so strong. They could also build up their vitamin D by exercising in shaded outdoor areas.

“It is not necessary to be in direct sunlight all the time,” Ms Thanomwong said.

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absorption: when something takes in a liquid, gas or other substance from the surface or space around - ซึมซับ ดูดกลืน

activity: a thing that you do for interest or pleasure, or in order to achieve a particular aim - กิจกรรม

attribute to: to believe that something is the result of a particular situation, event, or person’s actions - ถือว่าเป็นของ

average: an amount calculated by adding several amounts together, finding a total, and dividing the total by the number of amounts - เฉลี่ย, ค่าเฉลี่ย

average: ordinary; not unusual or different in any way - ธรรมดา, ปกติ

avoid: to stay away from a place; to try to prevent something from happening - หลีกเลี่ยง

avoid: to stay away from; to not use - หลีกเลี่ยง

bone: the hard inner structure of the body - กระดูก

build up: increase over time (build up strength, build up immunity, build up expertise) - เพิ่มขึ้นอย่างมั่นคง

complexion: the natural colour and condition of the skin on a person's face - ลักษณะผิว

consequence: result of effect of something - ผลที่ตามมา

deficiency: lacking the ability to do something, in this case, to produce infection-fighting substances - การขาดภูมิคุ้มกัน

direct: going straight to a place (not "going to other places first" which is "indirect") - ตรงไป, ไม่เบี่ยงเบน

disease: a health problem and problem with a person's body, often caused by an infection, either from a bacteria or virus - โรค

ensure: to make certain that something happens or is done - ให้การยืนยัน, รับรอง, ให้ความมั่นใจ

exercise: a set of activities for training or testing - การฝึกฝน

exposed: not protected and in direct contact with something harmful - ได้รับสารผิด

exposure: the state of being put into a situation in which something harmful or dangerous might affect you - การสัมผัส, การเปิดรับ

faculty: a group of departments in a college or university which specialise in a particular subject or group of subjects - คณะ

fad: something that is popular or fashionable only for a short time - กระแสนิยม แฟชั่นสมัยนิยม

hormone: a chemical substance produced in animals and plants that controls things such as growth and sexual development - ฮอร์โมน, สารเคมีในร่างกายที่กระตุ้นการทำงานของอวัยวะต่างๆ

indoors: inside the house or building - ในบ้าน

leach: when a chemical or mineral is removed by water passing through something such as soil or bone, leach away, leach out - กรองออก, กรองทิ้ง

lecturer: a teacher at a university or college - อาจารย์ผู้บรรยาย

minimum: the lowest possible; the lowest allowed - ต่ำที่สุด, น้อยที่สุด

necessary: essential, needful, something that you must do or have - จำเป็น, ซึ่งเลี่ยงไม่ได้, ซึ่งเป็นที่ต้องการ, สำคัญ

obsession: the one thing that a person thinks about all the time, a preoccupation - การครอบงำจิตใจ, การฝังแน่นอยู่ในจิตใจ

opportunity: a chance to do something, or a situation in which it is easy for you to do something - โอกาส

osteoporosis: a disease that causes weak bones - โรคกระดูกพรุน; ภาวะกระดูกพรุน

outdoor: outside, not inside a house or building - ข้างนอก, นอกบ้าน

production: the process of making goods or materials, especially large quantities - การผลิต

protect: to make sure that somebody/something is not harmed, injured, damaged, etc - ป้องกัน,อารักขา,คุ้มกัน

ray: a narrow line of light that you can see coming from the sun or a light - รังสี

release: to let something move freely; to allow a substance to flow out from somewhere - ปล่อย

risk: the possibility that something dangerous or unpleasant might happen - ความเสี่ยง

shade: an area that is dark and cool under or behind something, for example a tree or building, because the sun's light does not get to it - ร่ม

standards: a level of quality that is normal or acceptable for a particular person or in a particular situation - มาตรฐาน, บรรทัดฐาน

standards: rules for behaving which should be obeyed - มาตรฐาน, บรรทัดฐาน, กฎเกณฑ์, กรอบ

stimulate: to make something develop or become more active; to encourage something - กระตุ้น, ส่งเสริม

suggest: to mention an idea or a plan for somebody else to think about - เสนอ, เสนอแนะ

sun block: a cream or substance you put on your skin to stop the sun from hurting your skin when you go outside - กันแดด, ป้องกันแดด

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