Blue light exposure can increase the risk of early puberty and even impair fertility

Exposure to blue light from phones and tablets during childhood can increase the production of reproductive hormones and increase the risk of early-onset puberty and even impair future fertility, the study found.

  • Exposure to blue light can increase a child’s risk of going through early puberty and having fertility problems in the future
  • The researchers found that exposure to blue light increased the levels of some reproductive hormones
  • As a result, young girls may go through puberty earlier, with an increased risk of cancer and mental health problems.
  • Rates of precocious puberty have been rising in the US for decades to the concern of many experts

Exposure to blue light emitted by mobile phones and tablets at an early age can increase the risk of early onset of puberty and may even damage your fertility in the future, according to a new study.

A Turkish research team found that blue light increased reproductive hormone levels in rats that were regularly exposed to it, causing them to go through puberty earlier and undergo changes in their ovaries that could harm future fertility.

The dangers of blue light for sleep have long been explored and reported, but experts fear that the rampant use of smartphones and tablets among young people could be more harmful than anyone could have imagined.

It could also explain the jump in precocious puberty, when a child goes through puberty much earlier than normal, that occurred during the COVID-19 pandemic, as millions of children spent more hours each day looking at screens.

Early puberty has been linked to higher rates of depression and anxiety throughout life, and even breast and uterine cancer.

A study finds that exposure to blue light during early childhood can increase a child’s risk of going through precocious puberty and also cause long-term fertility problems. Early puberty is linked to a higher risk of mental health problems and even certain cancers later in life (file photo)

“We found that exposure to blue light, sufficient to alter melatonin levels, is also capable of altering reproductive hormone levels and causing an earlier onset of puberty in our rat model. In addition , the longer the exposure, the earlier the onset,” Dr. Aylin Kilinç Uğurlu said in a statement.

The researchers, who will present their findings Friday at the 60th Annual Meeting of the European Society of Pediatric Endocrinology, gathered 18 female rats for the study.

Young girls are going through puberty earlier than in the past, and experts say it could be setting them up for lifelong problems.

Young American girls are going through puberty at earlier ages than before, and while the causes are still in doubt, some experts fear that this could have negative effects on young women’s health later in life, both mentally and physically. like physically

The average age of puberty in the US has dropped from the typical, biologically recognized 12 years to 10 for women. Black and Hispanic girls, in particular, are going through puberty a year earlier on average.

Experts tell DailyMail.com that America’s growing obesity crisis could be the root cause, blaming poor diets for pushing puberty. Others think it could be caused by a violent childhood, and there is also the theory that it is linked to the imbalance of certain hormones.

There are also the long-term negative downsides, such as an association between early puberty and the development of cancer, which is still unexplained, and the traumatic experiences caused by a girl growing up a little too quickly.

The phenomenon was first spotted by Dr. Marcia Herman-Giddens, a public health expert at the University of North Carolina, when she began collecting data on more than 17,000 girls in the mid-1990s.

He found that the average age of puberty was falling, down to ten years, with some girls developing as early as six. Their findings spurred continued research on the topic, with experts from many fields investigating what caused this change and what its long-term effects might be.

Both the causes and effects of precocious puberty, when a child undergoes the process too early, are far-reaching and cannot be explained by a simple, one-size-fits-all solution.

Instead, the advancing age of puberty could be the result of several factors. And the consequences it can have on a girl’s life can be far-reaching.

The rodents were divided into three groups. One was placed on a normal light cycle, while the other two were exposed to six or 12 hours of blue light each day.

In both blue light groups, puberty occurred significantly earlier than expected.

Rats in the 12-hour group also had earlier puberty than the six-hour group, showing a correlation between increased blue light exposure and timing of puberty.

Rats in both blue light groups also showed elevated levels of estradiol and luteinizing reproductive hormones, which is consistent with early-onset puberty.

The research team also observed physical changes in the ovarian tissue of the rats.

The researchers aren’t sure how relevant these findings would be to humans, but they still point to a potential risk that these ever-present devices may pose.

“Since this is a rat study, we cannot be sure that these findings will be replicated in children, but these data suggest that exposure to blue light could be considered a risk factor for the onset of earlier puberty,” Uğurlu said.

The rats in the study were also found to have lower levels of melatonin than their peers, consistent with the damage blue light also has on human sleep.

Researchers fear that a generation of young children raised in a world where devices consume almost everything will cause rates of precocious puberty to rise, with many negative side effects.

Rates of early puberty in girls, in particular, are increasing, and have been for decades.

The average age of puberty in the US has dropped from the typical, biologically recognized 12 years to 10 for women. Black and Hispanic girls, in particular, are going through puberty a year earlier on average.

Experts told DailyMail.com in June that America’s growing obesity crisis could be the main cause, blaming poor diets for pushing puberty.

Others think it could be caused by a violent childhood, and there is also the theory that it is linked to the imbalance of certain hormones.

There are also the long-term negative downsides, such as an association between early puberty and the development of cancer, which is still unexplained, and the traumatic experiences caused by a girl growing up a little too fast.

The Turkish research team notes that rates of precocious puberty are believed to have skyrocketed over the past two years and fear that increased screen time for many children during the lockdowns may have played a role.

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