{"id":59906,"date":"2018-01-19T07:33:11","date_gmt":"2018-01-19T07:33:11","guid":{"rendered":"http:\/\/www.bnreport.com\/adolescence-now-lasts-from-10-to-24-scientists-say\/"},"modified":"2018-01-19T07:33:11","modified_gmt":"2018-01-19T07:33:11","slug":"adolescence-now-lasts-from-10-to-24-scientists-say","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/adolescence-now-lasts-from-10-to-24-scientists-say\/","title":{"rendered":"Adolescence now lasts from 10 to 24, scientists say"},"content":{"rendered":"

Adolescence now lasts from the ages of 10 to 24, although it used to be thought to end at 19, scientists say.<\/p>\n

Young people continuing their education for longer, as well as delayed marriage and parenthood, has pushed back popular perceptions of when adulthood begins.<\/p>\n

And changing the definition is vital to ensure laws and government policy stay appropriate, they say in the Lancet Child & Adolescent Health<\/a> journal. <\/p>\n

But another expert warns doing so risks "further infantilising young people".<\/p>\n

When puberty begins <\/h2>\n

Puberty is considered to start when the part of the brain known as the hypothalamus starts releasing a hormone that activates the body's pituitary and gonadal glands.<\/p>\n

This used to happen around the age of 14 but has dropped with improved health and nutrition in much of the developed world to around the age of 10.<\/p>\n

As a consequence, in industrialised countries such as the UK the average age for a girl's first menstruation has dropped by four years in the past 150 years.<\/p>\n

Half of all females now have their period by 12 or 13 years of age.<\/p>\n

When the body stops developing<\/h2>\n

There are also biological arguments for why the definition of adolescence should be extended, including that the body continues to develop.<\/p>\n

For example, the brain continues to mature beyond the age of 20, working faster and more efficiently.<\/p>\n

And many people's wisdom teeth don't come through until the age of 25.<\/p>\n

Delaying life's milestones<\/h2>\n

Young people are also getting married and having children later. <\/p>\n

According to the Office of National Statistics<\/a>, the average age for a man to enter their first marriage in 2013 was 32.5 years and 30.6 years for women across England and Wales. This represented an increase of almost eight years since 1973.<\/p>\n

Lead author Prof Susan Sawyer, director of the centre for adolescent health at the Royal Children's Hospital in Melbourne, writes: "Although many adult legal privileges start at age 18 years, the adoption of adult roles and responsibilities generally occurs later."<\/p>\n

She says delayed partnering, parenting and economic independence means the "semi-dependency" that characterises adolescence has expanded. <\/p>\n

Social policy<\/h2>\n

This social change, she says, needs to inform policy, such as by extending youth support services until the age of 25.<\/p>\n

"Age definitions are always arbitrary", she writes, but "our current definition of adolescence is overly restricted". <\/p>\n

"The ages of 10-24 years are a better fit with the development of adolescents nowadays."<\/p>\n

But Dr Jan Macvarish, a parenting sociologist at the University of Kent, disagrees.<\/p>\n

"Older children and young people are shaped far more significantly by society's expectations of them than by their intrinsic biological growth," she said.<\/p>\n

"There is nothing inevitably infantilising about spending your early 20s in higher education or experimenting in the world of work."<\/p>\n

And we should not risk "pathologising their desire for independence".<\/p>\n

"Society should maintain the highest possible expectations of the next generation," Dr Macvarish said.<\/p>\n

<\/a><\/strong> <\/a><\/p>\n

Original Article<\/a><\/p>\n

[contf]
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\n <\/p>\n

BBC<\/a><\/h5>\n

[contfnewc]
\n[contfnewc]<\/p>\n","protected":false},"excerpt":{"rendered":"

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