Scientists have discovered global heating associated with preterm birth and damage to baby’s health.Climate crisis

Six new studies have found that the climate crisis is negatively impacting the health of fetal, infant and infants around the world.

Scientists have discovered that increased fever is associated with rapid weight gain in babies. This increases the risk of obesity in later years. Elevated temperatures were also associated with preterm births, which could have lifelong health effects, and increased hospitalization for infants.

In other studies, smoke exposure from wildfires doubled the risk of serious congenital deficiencies, and lower fertility rates, even at low levels, were associated with air pollution from fossil fuel burning. I found out that.Research published in Journal Pediatric and Perinatal Epidemiology Special Issue, Spread all over the world from the United States to Denmark, Israel and Australia.

“From the beginning, from prejudice to early childhood and adolescence, we are beginning to see the significant health effects of climate hazards,” said Professor Gregory Wellenius, who edited the issue at Boston University’s Amelia Wesselink. I am. US public health.

“This is a problem that affects everyone everywhere. These extreme events will be more likely and more serious as climate change continues. [and this research shows] Why they are important to us today, not in the future. “

Link between 1 year old heat and rapid weight gain Discovered by Israeli scientists. They analyzed the births of 200,000 people and found that babies exposed to 20% of nighttime highs were at a 5% increased risk of rapid weight gain.

Researchers at the Hebrew University of Jerusalem said the study “has a significant impact on both climate change and the epidemic of obesity.” This is because early childhood is important in determining the weight of an adult, and obese people can suffer more from extreme heat. “This is an interesting hypothesis worth following up,” says Wellenius.

Worldwide, 18% of children are currently overweight or obese. A possible mechanism for a baby’s rapid weight gain is that less fat is burned to maintain body temperature when the ambient temperature is high.

A California study found that a mother was exposed to a wildfire in the month before her pregnancy. The risk of birth defects has doubled Called GastroschisisWhere the baby’s intestines and sometimes other organs stick out of the body through small holes in the skin.

Scientists investigated 2 million births, 40% of which were mothers and consequent air pollution that lived within 15 miles of the wildfire. Already known to be harmful To pregnant women And its foetation.. They found a 28% increased risk of birth defects in mothers living near wildfires in early pregnancy.

During a wildfire in the summer of 2007 in Greece, a woman and a baby fled the burning village of Platanos. Photo: Louisa Gouliamaki / AFP / Getty Images

Fetal gastroschisis is rare – there are about 2,000 cases annually in the United States. However, cases are increasing all over the world. Bo Young Park of California State University said: “Therefore, it is important to fully understand the health consequences associated with wildfires.”

Two new studies examined the relationship between high temperature and preterm birth.The Initially evaluated nearly 1 million pregnant women From 2005 to 2014, in New South Wales, Australia, 3% gave birth 37 weeks ago.

Researchers found that those in 5% of the hottest places in the state during the prenatal week had a 16% higher risk of preterm birth.Previous studies have shown similar effects Brisbane’s warmer subtropical cityHowever, this was the first in the temperate regions of Australia.

“Risk [premature] Births can increase with the expected increase in global temperature and heat waves-this is a potentially serious concern, “said a researcher led by Edward Jega Society of the University of Sydney.

The Second study We analyzed the births of 200,000 people from 2007 to 2011 in Harris County, Texas (including Houston), where people are accustomed to heat. This period included the hottest summer in Texas recorded in 2011.

A quarter of mothers were exposed to very hot days during pregnancy, when temperatures reached the top 1% of historic summer temperatures, at least one day. Scientists have found that the risk of preterm birth was 15% higher the day after these very hot days. However, the risk was even higher, especially for preterm births, tripled for babies born before 28 weeks and even 20% of the least fortunate mothers.

Researchers led by Lara Cushing at the University of California, Los Angeles said, “Pregnant people, especially given the finding of a strong early pregnancy link to public health warnings during heat waves, where the consequences of preterm birth are more serious. Must be included. ” It is unknown how fever causes preterm birth, but it may be due to the release of labor-inducing hormones.

This new study 2020 review of 68 studiesConsisting of 34m births, heat and air pollution have linked to increased risk of preterm birth, low birth weight and stillbirth. Bruce Becker, the author of the review and a retired obstetrician, said:

Wellenius said: “A moderate fever can affect fetal development, pregnancy complications, children and adolescents. The risk to an individual is moderate, but because so many people are exposed. Whether preterm or dead, the total number of excessive events is considerable. “

The temperature is also high Increased the number of infant hospitalizations in the emergency department Another new study was found in New York City. Scientists examined 2.5 million hospitalizations over eight years and found that a 7-degree rise in maximum temperature increased hospitalizations for children under the age of five by 2.4%. Researchers say that infants lose proportionately more water than adults and their ability to regulate body temperature is immature.

Burning fossil fuels causes a climate crisis, but it also causes air pollution. A new study in Denmark evaluated the effects of dirty air on 10,000 couples trying to get pregnant naturally.Increased particle contamination of several units during the menstrual cycle Approximately 8% reduction in conception..

Recently Study in china We also found that air pollution significantly increased the risk of infertility, but the average pollution level was more than five times higher than in the Danish study. “Air pollution [in Denmark] It was low and almost completely considered safe by the European Union, “said Wesselink. “Current standards may not be sufficient to protect against adverse reproductive health.”

According to Wellenius, an important aspect of the investigation is that vulnerable people have often been shown to suffer the worst. “This is absolutely a matter of health fairness and justice,” he said.

Scientists have discovered global heating associated with preterm birth and damage to baby’s health.Climate crisis

Source link Scientists have discovered global heating associated with preterm birth and damage to baby’s health.Climate crisis

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