National News

The bacteria that causes gonorrhea can cause infertility in women and men.

STD Infections Rise To New Highs After States Close Health Clinics

The number of people infected with three major sexually transmitted diseases is at an all-time high, according to a CDC report released Wednesday. And the increase in reported cases of chlamydia, gonorrhea and syphilis is hitting teenagers and young adults hardest.

Over half of gonorrhea and chlamydia cases are in people under the age of 25, says Dr. Jonathan Merrin, director of the National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention for the CDC.

Mars Lander May Be Missing, But A Second Spacecraft Is Still Humming Along

The Schiaparelli Mars lander got very close to the red planet before something went wrong. It entered the planet's atmosphere, managed not to burn up as it hurtled down and unfurled its parachute. It's unclear what happened in the final minute of descent, but it wasn't what the European and Russian space agencies had planned.

Bottles of Fanta are displayed in a food truck's cooler in 2014 in San Francisco. The city is one of several in California that have a soda tax on the ballot this November.

Trick Or Treat? Critics Blast Big Soda's Efforts To Fend Off Taxes

If you live in the San Francisco Bay area, you may have seen ads urging you to vote "no" on a grocery tax. "Don't Tax Our Groceries" is the tagline of the $9.5 million campaign, which is funded by the American Beverage Association.

In one ad, the camera pans to images of tomatoes and beans, as a local business owner says, "The grocery tax is going to hurt my customers."

But, here's the thing. There's no grocery tax on the ballot.

Republican presidential candidate Donald Trump speaks during a campaign rally at the Delaware County Fair in Ohio Thursday.

Donald Trump Says He'll Accept The Results Of The Election ... If He Wins

In front of an exuberant crowd Thursday in Delaware, Ohio, Donald Trump again addressed whether he would accept the outcome of the November election.

"Ladies and gentleman I want to make a major announcement today," Trump said, continuing, "I would like to promise and pledge to all of my voters and supporters, and to all of the people of the United States, that I will totally accept the results of this great and historic presidential election ..."

Philippine President Rodrigo Duterte, seen here during a meeting at the Great Hall of the People in Beijing, says he's separating from the U.S. and seeking closer ties with China.

Philippines' Duterte Says He's 'Separated' From U.S., As He Cozies Up To China

After weeks of anti-U.S. rhetoric that included denunciations of President Obama, Philippine President Rodrigo Duterte has announced "I have separated from them," using his remarks during a state visit to China to seek closer ties with that country.

A poster of mathematician and computing innovator Alan Turing.

U.K. Will Posthumously Pardon Thousands Of Gay And Bisexual Men

The British government announced Wednesday that it intends to posthumously pardon thousands of men convicted for consensual sexual relationships with other men.

A proposed amendment dubbed the "Turing Law" was announced by the U.K.'s Ministry of Justice in a press release that said it would "build on the case of Enigma codebreaker Alan Turing, who committed suicide following his conviction for gross indecency."

Burmese python and the DNA sequence responsible for limb loss.

How Snakes Lost Their Legs

Snakes used to wander the Earth on legs about 150 million years ago, before they shifted from strut to slither.

Now, two scientists have pinpointed the genetic process that caused snakes to lose their legs. What's more, they say the "molecular machinery" for leg development still persists in snakes after these millions of years — it's simply switched off.

A fainting episode, though usually no big deal, can sometimes be caused by a blood clot.

When A Fainting Spell Is Caused By A Serious Blood Clot

Unexplained fainting episodes may be caused by a dangerous blood clot in the lung more frequently than many doctors suspect, according to an Italian study.

Episodes of fainting (known as syncope) are quite common in elderly people. About half the time, doctors identify an underlying heart condition. Other cases are caused by shock or some other passing cause. But many cases remain mysterious.

Donald Trump at a campaign rally in Council Bluffs, Iowa, in September.

1 More Woman Accuses Trump Of Inappropriate Sexual Conduct. Here's The Full List

Updated Oct. 20 at 2:34 p.m. to include the Trump campaign's response to Karena Virginia's allegations.

The allegations against Donald Trump of inappropriate sexual behavior had quieted down, but on Thursday morning, another woman spoke up. The latest accuser, Karena Virginia, held a Thursday press conference with attorney Gloria Allred, in which Virginia alleged that Trump groped her in 1998.

Trump has thus far denied any of the incidents and has also threatened to sue the New York Times, which reported two of the most recent accusations.

Breathing Less Oxygen Reduces Jet Lag, At Least In Mice

Whether it's jet lag, a new work schedule, daylight saving time or just a Monday morning, shifting sleep schedules takes a toll. But scientists think they might have found a way to reset our internal timers that's more than hot air.

At least, it works if you're a mouse. The solution, it seems, is thin air. A study published Thursday in the journal Cell Metabolism found that decreasing oxygen levels for a short period of time helped mice recover from jet lag faster.