Researchers concluded that higher levels of THC, the psychoactive chemical in marijuana that makes people feel high, are linked to significant chromosomal abnormalities in embryos.

A recent study published in Nature Communications has found that higher levels of THC, the psychoactive component in marijuana, are associated with significant chromosomal abnormalities in embryos. This research, which involved testing eggs and embryos from over 1,050 participants, is the first to directly examine human reproductive cells in relation to marijuana exposure.

Experts say these abnormalities could lead to an increased risk of infertility, miscarriages, and genetic defects in babies. The findings come amid a rise in marijuana use among pregnant women in the United States, with self-reported cannabis use more than tripling from 2002 to 2020. Researchers emphasize the need for further studies to better understand the implications of marijuana use on reproductive health.

Study: Marijuana linked to higher risk of infertility, miscarriages

A new study links marijuana use to damage to a woman's reproductive system. This is the first time marijuana research included tested human eggs and embryos. Health reporter Gillian Neff with more. A greenhouse scene like this would have seemed taboo in the past. But now marijuana growing businesses are not only legal, but thriving with plenty of demand, which is why researchers say it's more important than ever to identify the potential harm of marijuana use, whether it's in the form of edibles or smoked. The latest finding, higher levels of THC, the psychoactive chemical in marijuana that makes people feel high, are linked to significant chromosomal abnormalities in embryos. Experts say this could mean a higher risk of infertility, miscarriage, and genetic defects in babies. Researchers discovered this by testing eggs and embryos from more than 1,050 study participants, comparing the egg cells from patients who did not have THC in their system to those who did. The study findings were published Tuesday in the journal Nature Communications. Experts say the data comes as marijuana use during pregnancy is rising, and the upward trend started even before recreational marijuana became legal in the tri-state area. A study found self-reported cannabis use more than tripled in pregnant women in the U.S. from 2002 to 2020. Experts also say more research is needed. I'm health reporter Gillian Knapp, and that's your News 12 health report. To read the whole study, go to news12.com.

Five U.S. F-35 fighter jets landed in Puerto Rico amid escalating tensions with Venezuela. Separately, Caracas said 18 armed U.S. Navy personnel raided a tuna boat sailing in Venezuelan waters.

San Juan

U.S. sends jets to Puerto Rico amid escalating tensions with Venezuela

U.S. President Donald Trump said he believes the Russia-Ukraine war would end if all NATO countries stopped buying oil from Russia and placed tariffs on China of 50 percent to 100 percent for its purchases of Russian petroleum.

Washington

Trump calls on NATO members to stop purchasing Russian oil

U.S. Secretary of State Marco Rubio arrived in Israel on Sunday, as Israel intensified its attacks against northern Gaza. The trip is taking place after President Donald Trump rebuked Israel over the unprecedented attack against Hamas leaders meeting in Doha.

Tel Aviv-Yafo

Middle East Conflict

Marco Rubio visits Israel to push for Gaza ceasefire talks

NATO announced plans to beef up the defense of Europe's eastern flank on Friday, two days after Poland shot down drones that had violated its airspace in the first known action of its kind by a member of the Western alliance during Russia's war in Ukraine.

Warsaw

Ukraine Invasion

NATO bolsters its eastern flank after Russian drones hit Poland

Protests broke out in Chicago on Saturday against President Trump's immigration crackdown. A group of Catholic clergy led what they called a "People's Mass" outside the Great Lakes Naval Base. The base will also be used by Immigration and Customs Enforcement as a staging area for deportations.

Chicago

Tensions over immigration escalate in Chicago

More than 100,000 people took to the streets in London on Saturday, in what's believed to be the largest anti-immigration protest in British history. Organizers called it a "Unite the Kingdom" rally.

London

Huge crowds march for right-wing "Unite the Kingdom" rally in London

President Trump signaled a new position on Russia's war with Ukraine. He said the U.S. will agree to additional sanctions on Moscow, but only when NATO allies stop buying Russian oil. Willie James Inman has more details.

Global Tariffs

Trump says NATO must stop buying Russian oil

Tyler Robinson, the 22-year-old suspect in the murder of conservative activist Charlie Kirk, is being held in Spanish Fork, Utah. Officials have yet to identify a precise motive for Wednesday's shooting. Carter Evans has new developments.

Orem

Suspect's family says he recently became more political

NATO has launched operation Eastern Sentry to bolster its presence along the eastern flank of Europe, after Russian drones were found in Poland on Wednesday. Meanwhile, U.S. President Donald Trump is calling on all treaty members to increase economic pressures on Russia.

Trump calls on NATO members to impose sanctions on Russia

More than 100,000 people marched through central London on Saturday in a 'Unite the Kingdom' demonstration against immigration organized by far-right activist Tommy Robinson. Police said a number of officers were assaulted.

Thousands in London march against immigration

A former chief justice has been sworn in as Nepal's interim prime minister. For many people, Sushila Karki's appointment promises change. Days of violence and anti-government protests left at least 51 people dead.

Kathmandu

Curfew lifted in Kathmandu, violence in Nepal eases

A civil war within the Sinaloa cartel in western Mexico has forced thousands of people to abandon their villages. Rival factions are battling for territory and control. Communities caught in the middle of the violence are demanding change.

Culiacán

Mexico’s Sinaloa cartel war displaces thousands

The man accused of killing conservative commentator and activist Charlie Kirk is being held without bail in a Utah jail. Meanwhile, vigils and memorials across the country honored Kirk as his widow made her first public remarks since his death.

Charlie Kirk shooting suspect held without bail

President Trump has backed down on his plans to send the National Guard to Chicago, for now. Instead, he told Fox News that federal troops will be deployed to a different city.

Trump backs down on sending National Guard to Chicago

A suspect is in custody after the deadly shooting of conservative activist Charlie Kirk. Authorities say 22-year-old Tyler Robinson is being held at Utah County Jail, pending formal state charges, which are expected to be filed on Tuesday. CBS News' Andres Gutierrez and Anna Schecter have more.

What we know about the Charlie Kirk shooting suspect's arrest

The United Nations General Assembly has overwhelmingly voted to endorse a declaration outlining "tangible, timebound, and irreversible steps" towards a two-state solution between Israel and the Palestinians ahead of a meeting of world leaders.

New York

UN endorses two-state solution declaration that condemns Hamas

In Tunisia, the humanitarian aid flotilla for Gaza is set to leave Tunis. About 40 boats will try to deliver aid to the Palestinians under blockade. In Tunisia the departure was not easy, as two boats from the flotilla were subject to reported drone attacks.

Tunis

Gaza aid flotilla prepares to set sail after reported drone attacks

Brazil's Supreme Court has sentenced firebrand ex-president Jair Bolsonaro to 27 years in prison for coup plotting at the end of a landmark trial that divided the nation and drew U.S. fury.

Brasilia

Brazil's ex-president Jair Bolsonaro sentenced to 27 years in prison

Israeli Prime Minister Benjamin Netanyahu signed an agreement to push ahead with a controversial settlement expansion plan that would cut across land that the Palestinians seek for a state. "There will never be a Palestinian state. This place is ours," Netanyahu said.

Jerusalem

Netanyahu signs West Bank settlement expansion plan

The United Nations Security Council has condemned the Israeli attack on the Qatari capital Doha on Tuesday and called for de-escalation in a statement agreed by all 15 members, including Israel’s chief ally, the United States.

Doha

UNSC members condemn Israel over deadly strike on Qatar

Ryan Routh, accused of attempting to assassinate former President Trump in South Florida last year, is representing himself in court. As the trial opened, Routh forfeited his chance to deliver an opening statement, setting the stage for proceedings.

Fort Pierce

Trump assassination attempt suspect defends himself in trial

Photos of a "person of interest" in the assassination of Charlie Kirk were released by the Salt Lake City FBI. Authorities are searching for the person who shot and killed the conservative activist at an event at Utah Valley University.

Photos released of "person of interest" in Charlie Kirk assassination

Authorities shared new details about the suspect's movements leading up to the fatal shooting of conservative activist Charlie Kirk. The search for the suspect continued on Thursday.

FBI says it has good video of Charlie Kirk shooting suspect

President Donald Trump announced Thursday that he will award conservative activist Charlie Kirk, who was assassinated during a campus event in Utah, the Presidential Medal of Freedom posthumously.

Trump says he'll award Charlie Kirk the Presidential Medal of Freedom

Authorities say the weapon used in the fatal shooting of conservative activist Charlie Kirk has been recovered and law enforcement tracked the movements of the suspect.

Officials: Weapon in Charlie Kirk shooting recovered; suspect tracked

Trump vowed retribution in an Oval Office address after his close ally and conservative activist Charlie Kirk was fatally shot on a campus in Utah. A massive search for the killer intensified following Kirk's death, with police going door-to-door looking for the shooter.

Trump pledges to find killer of conservative activist Charlie Kirk

The UAE’s President Mohammed bin Zayed visited Doha a day after Israel’s strike, signalling Gulf solidarity. Qatar’s prime minister called the strike “state terror,” accusing Israel of killing hopes for a hostage deal and demanding Netanyahu face justice.

Qatar seeks ‘collective response’ to Israeli attack

Poland is rejecting the claim that Russian drones crossed into Polish airspace by accident and says the move is reckless and could lead to potential escalation.

Europe on edge after Russian drones invade Polish airspace

Prince Harry and King Charles had a private tea in London, Buckingham Palace. This marks their first meeting in nearly two years. Harry, the Duke of Sussex, last saw his father in early 2024, shortly after it was announced the King was undergoing cancer treatment.

King Charles, Prince Harry meet for the first time in nearly 2 years

U.S. President Donald Trump says rightwing political activist Charlie Kirk is dead after being shot in the neck at a university campus event in Utah. There is not a suspect in custody.

Breakdown