今週は
全国各地で
猛烈な
暑さが
続いています
This week, intense heat continues across the country.
や
脱水症状などに
気をつけたいところですが、
合わせて
注意したいのが「
日焼け」です
We need to be careful about things like heatstroke and dehydration, but we should also watch out for sunburn.
日焼けの原因となる紫外線は6月から8月が特に強くなり、ことしは梅雨時でも日が差す時間が長いのでいまから対策が必要です
The ultraviolet rays that cause sunburn are especially strong from June to August, and since this year there will be longer periods of sunshine even during the rainy season, its important to start taking precautions now.
日焼け止めを選ぶときに何を基準に選べばいいのか、皮膚科の吉木伸子医師に聞きました
What criteria should you use when choosing sunscreen? We asked Dr. Nobuko Yoshiki, a dermatologist.
日焼け止めをお店などで手にするとき「SPF」や「PA」といった表示を目にしますよね
When you pick up sunscreen at a store, you often see labels like SPF and PA, right?
が
ポイントなんです
「SPF」と「PA」は紫外線を防止する効果を示す指標です
SPF and PA are indicators that show the effectiveness of protection against ultraviolet rays.
そもそも紫外線は、波長の違いによってUVーA＝紫外線A波とUV－B＝紫外線B波などに分けられます
そもそも, ultraviolet rays can be classified into UV-A ultraviolet A rays and UV-B ultraviolet B rays, etc., based on differences in wavelength.
▽UVーAは、肌の奥深くまで届く紫外線で、しわやたるみなどの原因になります
▽UV-A is ultraviolet rays that penetrate deep into the skin and cause wrinkles and sagging.
▽UVーBは、肌を赤く炎症させる紫外線で、日焼けによるしみやそばかすの原因になります
UV-B is ultraviolet rays that cause redness and inflammation of the skin, and are responsible for sunburn, spots, and freckles.
▽SPFはUV－B（しみ・そばかす）を防ぐ指標で、「10～50＋」まで6段階あります
SPF is an indicator that protects against UV-B spots and freckles, and it is available in six levels from 10 to 50+.
▽PAはUV－A（しわ・たるみなど）を防ぐ指標で、「＋～＋＋＋＋」まで4段階あります
PA is an indicator that prevents UV-A wrinkles, sagging, etc., and it has four levels from + to ++++.
数値が高くなったり、「＋」の数が多くなるほど効果が高まるんです
The higher the number or the more + signs there are, the greater the effect.
数値が大きいものを使えばいいということでしょうか？
必ずしもそうではないんです
Does that mean I should just use the one with the larger number? Thats not necessarily the case.
数値が大きいほど肌への負担が重くなります
The larger the number, the greater the burden on your skin.
必要以上に数値の高いものを選ぶと、個人差はありますが、皮膚の赤みや乾燥など紫外線とは別の肌トラブルにつながる危険性があるんです
If you choose a product with a higher value than necessary, it can potentially lead to other skin problems such as redness or dryness, separate from UV damage, although this varies from person to person.
そのため状況に応じた使用が求められます
Therefore, it is necessary to use it according to the situation.
日本化粧品工業会によりますと、通勤や買い物などの日常生活ではSPFは「10～30」程度、PAは「＋～＋＋」程度のものを
According to the Japan Cosmetic Industry Association, for daily activities such as commuting or shopping, SPF of around 10 to 30 and PA of about + to ++ are recommended.
屋外でのスポーツや海水浴などでは、SPFは「30～50＋」程度、PAは「＋＋＋～＋＋＋＋」程度のものを使用するといいといいます
For outdoor sports or swimming in the sea, it is recommended to use a sunscreen with an SPF of around 30 to 50+ and a PA rating of +++ to ++++.
生活シーンに合わせてSPFやPAの指標を参考に選んでいきたいですね
We want to choose based on SPF and PA indicators according to different life situations.
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