{"id":131185,"date":"2024-06-06T09:05:22","date_gmt":"2024-06-06T06:05:22","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/how-air-pollution-is-causing-girls-to-get-their-first-periods-earlier\/"},"modified":"2024-06-06T09:05:22","modified_gmt":"2024-06-06T06:05:22","slug":"how-air-pollution-is-causing-girls-to-get-their-first-periods-earlier","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/fi\/news\/how-air-pollution-is-causing-girls-to-get-their-first-periods-earlier\/","title":{"rendered":"How air pollution is causing girls to get their first periods earlier"},"content":{"rendered":"<div class=\"mp_wrapper\">\n  <div class=\"mepr-unauthorized-message\">\n    <p>You are unauthorized to view this page.<\/p>\n  <\/div>\n  <div class=\"mepr-login-form-wrap\">\n            \n<div class=\"mp_wrapper mp_login_form\">\n                  <!-- mp-login-form-start -->     <form name=\"mepr_loginform\" id=\"mepr_loginform\" class=\"mepr-form\" action=\"https:\/\/tietopankki.crnet.fi\/fi\/login-2\/\" method=\"post\">\n            <div class=\"mp-form-row mepr_username\">\n        <div class=\"mp-form-label\">\n                              <label for=\"user_login\">Username<\/label>\n        <\/div>\n        <input type=\"text\" name=\"log\" id=\"user_login\" value=\"\" \/>\n      <\/div>\n      <div class=\"mp-form-row mepr_password\">\n        <div class=\"mp-form-label\">\n          <label for=\"user_pass\">Password<\/label>\n          <div class=\"mp-hide-pw\">\n            <input type=\"password\" name=\"pwd\" id=\"user_pass\" value=\"\" \/>\n            <button type=\"button\" class=\"button mp-hide-pw hide-if-no-js\" data-toggle=\"0\" aria-label=\"Show password\">\n              <span class=\"dashicons dashicons-visibility\" aria-hidden=\"true\"><\/span>\n            <\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n            <div>\n        <label><input name=\"rememberme\" type=\"checkbox\" id=\"rememberme\" value=\"forever\" \/> Remember Me<\/label>\n      <\/div>\n      <div class=\"mp-spacer\">&nbsp;<\/div>\n      <div class=\"submit\">\n        <input type=\"submit\" name=\"wp-submit\" id=\"wp-submit\" class=\"button-primary mepr-share-button \" value=\"Log In\" \/>\n        <input type=\"hidden\" name=\"redirect_to\" value=\"\/fi\/wp-json\/wp\/v2\/posts\/131185\" \/>\n        <input type=\"hidden\" name=\"mepr_process_login_form\" value=\"true\" \/>\n        <input type=\"hidden\" name=\"mepr_is_login_page\" value=\"false\" \/>\n      <\/div>\n    <\/form>\n    <div class=\"mp-spacer\">&nbsp;<\/div>\n    <div class=\"mepr-login-actions\">\n        <a\n          href=\"https:\/\/tietopankki.crnet.fi\/fi\/login-2\/?action=forgot_password\"\n          title=\"Click here to reset your password\"\n        >\n          Forgot Password        <\/a>\n    <\/div>\n\n      \n    <!-- mp-login-form-end --> \n  <\/div>\n      <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div class=\"smart_content_wrapper\">\nA study found that US girls exposed to high amounts of PM2.5 pollution are more likely to have their first period at an earlier age<br \/>\nNew research shows that girls in the US are getting their first periods earlier. Exposure to toxic air is partly to blame. For several decades, scientists around the world have become increasingly concerned by signs that girls are entering puberty at a much younger age compared with previous generations.<\/p>\n<p>From when girls experience their first period, something which scientists term the age of menarche, to commencing breast development, these seminal changes marking the onset of adolescence appear to be taking place progressively sooner. American girls today have been estimated to start menstruation up to four years earlier compared to girls living a century ago. In May, new data showed that while girls born between 1950 and 1969 typically began menstruating at 12.5 years, this decreased to an average of 11.9 years for the generation born in the early 2000s.<\/p>\n<p>The same trend has also been noted around the world. South Korean scientists have described with some alarm how the number of girls displaying signs of precocious puberty \u2013 either breast development or menstruation before the age of eight &#8211; increased 16-fold between 2008 and 2020. &#8220;We&#8217;re also seeing that these decreasing ages at puberty are even more pronounced in lower socioeconomic status groups, and ethnic minority groups,&#8221; says Audrey Gaskins, an associate professor at Emory University in Atlanta, the US. &#8220;This has important implications for long-term health.&#8221;<\/p>\n<p>Researchers like Gaskins are primarily concerned that beginning puberty earlier might trigger a cascade of events which have far-reaching consequences later in adulthood. Emerging data suggests that it may not only curtail the fertility window, particularly if these women then enter menopause sooner, but shorten their lives. Precocious puberty has been repeatedly associated with a higher risk of diseases ranging from breast and ovarian cancers, metabolic syndromes such as obesity and type 2 diabetes, and cardiovascular disease. Scientists are still trying to understand why this is the case, but Brenda Eskenazi, professor of public health at University of California, Berkeley, says one theory suggests that if the body&#8217;s cells are exposed to circulating levels of sex hormones such as oestrogen for a greater period of time, this can increase the risk of tumour development because these hormones stimulate cell growth. &#8220;There&#8217;s some theories that having a longer window of exposure to hormones increases risk for reproductive cancers,&#8221; she says.<\/p>\n<p>Then there are the possible social consequences. Eskenazi points out that girls who enter puberty earlier are also more likely to become sexually active earlier. &#8220;There&#8217;s a scary situation in the United States when we have the trend of abortion becoming illegal and contraception not being available,&#8221; she says. &#8220;It&#8217;s going to lead to more unwanted teen pregnancies, so that confluence of factors is very frightening.&#8221;<br \/>\n<a rel=\"noopener\" href=\"https:\/\/www.bbc.com\/future\/article\/20240605-how-air-pollution-is-impacting-girls-puberty\">Read more&gt;&gt;<\/a><\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/www.bbc.com\/future\/article\/20240605-how-air-pollution-is-impacting-girls-puberty\">BBC<\/a><\/p>\n<\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/vaufien\/how-air-pollution-is-causing-girls-to-get-their-first-periods-earlier\/\">How air pollution is causing girls to get their first periods earlier<\/a> appeared first on <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\">Vastuullisuusuutiset.fi<\/a>.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[536,796,606,607,608],"class_list":["post-131185","post","type-post","status-publish","format-standard","hentry","category-news","tag-air-pollution","tag-girl","tag-vau_viikkokatsaus","tag-vauen","tag-vaufien"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts\/131185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/comments?post=131185"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts\/131185\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/media?parent=131185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/categories?post=131185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/tags?post=131185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}