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A Waldorf, Maryland housewife shot and killed her police detective husband in an apparent murder-suicide Friday evening.

Police say Christina Francis, 41, fatally shot Timothy Francis, 50, before turning the gun on herself in a murder-suicide that shocked neighbors on their quiet suburban street.

WUSA9 reports Charles County detectives responded to a 911 call around 6 p.m. on the 3300 block of Marylea Court after Christina's father found the bodies. He told police he tried to reach her by phone all day and when he didn't hear from her, he went to the home and discovered the bodies.

According to WUSA9, a neighbor who lives a few houses down saw Christina shortly before the incident.

"She had just walked past me walking her dog... and an hour and a half later, we heard the police sirens," Delancey Praylow III said.

"It's sad because it feels like one of your own family members because we were all tight like that," Praylow said.

"You never know what people go through," said another neighbor, Demetrius Wilson.

Incidents of intimate partner violence (IPV) and stalking against men by women are on the rise, according to a National Family Violence Survey published in 2017.

A new study reveals that more men were killed by women in 2017 than in the decade prior. The figures aren't in yet for 2018-2020, but the statistics of women killing men are expected to soar.

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A new study suggests people who work from home are becoming more racist than their counterparts who still drive to work every morning.

The new study, conducted by polling company Survation, warns that people are living in a bubble and without social mixing between different cultures, religions and ethnic groups, people are more apt to become racist and intolerant to others.

In the United States, over 50% of the workforce continue to work from home amid the daily news reports of spikes in positive coronavirus tests.

44 percent of the workforce in the UK are now working from home due to strict coronavirus lockdown restrictions.

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Doctors are concerned about the effects of smoking marijuana among young people who are vulnerable to the coronavirus.

Weed smokers put themselves at risk of dying if they contract the coronavirus.

Weed smokers are among the COVID-19 high-risk categories and explains why more young people are succumbing to the virus in recent weeks.

Doctors say marijuana smoke weakens the heart muscles, putting weed smokers and vapers at higher risk of dying due to COVID-19. Doctors have previously linked weed smoking to deaths of young people who contract COVID-19.

"The American Heart Association recommends that people not smoke or vape any substance, including cannabis products, because of the potential harm to the heart, lungs and blood vessels," said Dr. Rose Marie Robertson, the deputy chief science and medical officer for the American Heart Association, in a statement.

Experts say anyone considering smoking mary jane recreationally should consult with their doctors first.

In addition to COVID-19 risk factor, doctors also found weed smoking has "the potential to interfere with prescribed medications" as well as "trigger cardiovascular conditions or events, such as heart attacks and strokes," said clinical pharmacologist Robert Page II.

"If people choose to use cannabis for its medicinal or recreational effects, the oral and topical forms, for which doses can be measured, may reduce some of the potential harms," Page said in a statement.

"It is also vitally important that people only use legal cannabis products because there are no controls on the quality or the contents of cannabis products sold on the street," he added.

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Researchers working on a COVID-19 vaccine say the vaccine will only work if Black people participate in the clinical trials.

Calethia Hodges, a Black clinician who recruits Black people for human trials has a tough job. She is struggling to convince Black Atlantans to participate in the clinical trials.

Photo may have been deleted Hodges, a clinician at Infinite Clinical Trials near Atlanta, said Black people are disproportionately affected by the coronavirus. "And that's why I am here, in this neighborhood that is predominantly African American," she told NBC News.

She said researchers need Black people to volunteer to determine "how genetic factors affect relations to drugs."

So far, she has had no success recruiting Black volunteers in Atlanta.

Researchers put it bluntly: "A vaccine might not work in African Americans if African Americans do not participate in the clinical trials to create the drug."

But Black people are overwhelmingly saying "No, thanks."

Hodges is having difficulty recruiting Black men due to the fear of clinical trials after the infamous Tuskegee syphilis experiment that spanned 40 years from 1932 to 1972.

28 of the original 399 volunteers died of syphilis because they never received the drug to treat it. Another 100 died of related complications, 40 of their wives were infected, and 19 of their children were born with congenital syphilis.

"The reasons I hear African Americans will not participate are heartbreaking and disappointing," Hodges said. "I have heard about the Tuskegee experiment a lot. And I have heard 'They [doctors] will give me the virus.' And 'They will put a chip inside me.' Many say their parents raised them 'to never participate in medical research.' It's all tough to overcome."

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A new op-ed by Frank Furedi, a sociology professor and author, explores the link between men "shunning” sex, the MeToo movement and the "feminization" of young men.

Furedi notes that "Celibacy has become the new normal," as studies show the number of sexually inactive males is increasing.

A survey published by the American Medical Association (AMA) finds that sexual inactivity is increasing among men aged 18 to 24.

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1 in 3 young men reported no sexual activity during the past year.

One expert theorized that young men are having less sex because they are taking longer to grow up. Young men are preoccupied, perhaps with video gaming, social media or other young men.

Others say the decline of sexual activity is due to the economic insecurity many young people face.

They blame the "feminization" of young men in cultural and social life. The MeToo movement, for example, encourages a "defensive and anxious approach towards dealing with women."

The MeToo movement serves as a constant reminder of the inferiority of identity. This sentiment is most strikingly expressed through the negative qualities associated with the term ‘white man’. In these circumstances, it is not surprising that many men become hesitant and defensive in their relations with women. Defensiveness can lead to adopting the strategy of avoiding disappointment through disengagement from sexual interaction. Source

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A new study has revealed why morbidly obese people are more at risk for dying from Covid-19.

The study shows morbidly obese people are at high risk of dying from Covid-19 because their fat cells produce more of a protein that the virus needs to infect human cells.

Fat cells express more ACE2 receptors, which doctors say may explain why obese people are more at risk of dying from Covid-19.

The coronavirus attaches to ACE2 receptors that provide pathways into human cells. Researchers and epidemiologists have known for some time that the coronavirus infects people who have more ACE2 receptors. European white women have the least level of ACE2 receptors.

For instance, more men die from coronavirus than women. That is because men express more ACE2 in their testicles. Biological women don't have testicles.

The study collected data from hospitalized patients.

A separate study found that 66% of hospitalized patients were infected while at home on quarantine.

Doctors fear that restrictions such as sheltering at home may cause the infection to spread faster between family members than if they were outdoors.

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U.S. doctors have started prescribing hormone replacement therapy for men after learning that men are more likely to die from Covid-19 than women.

The coronavirus that causes Covid-19 uses ACE2 (Angiotensin-converting enzyme 2) as a pathway to enter human cells. ACE2 is expressed in the lungs, kidneys, and testicles.

Doctors are hoping estrogen will help protect men from the virus. Estrogen is naturally present in the blood of both sexes, but women have much higher levels of the sex hormone than men for the purpose of reproduction and carrying a baby to term.

According to the NY Times, two clinical trials are currently underway to determine whether dosing men with female sex hormones will protect them from the virus.

Last week, doctors on Long Island started treating male Covid-19 patients with Estradiol to boost their immune systems.

Los Angeles doctors will begin treating Covid-19 patients next week, according to the Times.

"There's a striking difference between the number of men and women in the intensive care unit, and men are clearly doing worse," said Dr. Sara Ghandehari, a pulmonologist at Cedars-Sinai in Los Angeles.

She said 75 percent of Cedars-Sinai's Covid-19 patients on ventilators are men.

Dr. Ghandehari said pregnant women, who have high levels of estrogen and progesterone, tend to have mild symptoms.

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Chinese researchers who analyzed over 72,000 patient records found that the Wuhan coronavirus has been more fatal in men than women.

Covid-19 primarily targets men, elderly, smokers and those with preexisting respiratory or cardiac conditions.

According to SCMP, doctors in central Wuhan are planning to conduct a study of the effects of Covid-19 on the male reproductive system after a smaller study of 81 men found that Covid-19 patients had roughly half the normal levels of the male sex hormone testosterone.

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Researchers analyzed blood samples from 81 men ages 20 to 54 who tested positive for the coronavirus and were hospitalized in January.

Previous studies show that the virus binds to ACE2 receptor cells which are found in the lungs, kidneys and testicles.

Researchers plan a long-term study which may include the collection and analysis of sperm samples as well as interviews with coronavirus patients.

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The White House's Office of Science and Technology Policy (OSTP) has asked scientists to investigate whether the deadly 2019 Coronavirus was bio-engineered in a laboratory.

ABC News reports that the OSTP sent a letter to the National Academies of Sciences, Engineering, and Medicine, asking that scientific experts "rapidly" look into the origins of the virus.

The news comes amid reports that the virus was developed in the only level 4 biohazard lab in China.

The Wuhan Institute of Virology lab is located near the Wuhan fish and wildlife market where Chinese authorities claim the virus jumped from animal to human.

ABC News' Chief Medical Correspondent Dr. Jennifer Ashton asked the director of the National Institute of Allergy and Infectious Disease about concerns that the coronavirus could have been engineered or deliberately released into the population in Wuhan, China.

"There's always that concern," Dr. Anthony Fauci said. "And one of the things that people are doing right now is very carefully looking at [gene] sequences to see if there's even any possibility much less likelihood that that's going on."

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The White House has good reason to be concerned that the 2019 Coronavirus may have been developed inside a laboratory.

Zerohedge.com was immediately banned from Twitter.com after publishing a detailed article describing the work of one of China's top virologists and immunology experts, Dr. Peng Zhou.

For over a decade, Peng studied the immune system of Chinese horseshoe bats, which carry some of the world's deadliest pathogens such as SARS (severe acute respiratory syndrome) and Ebola, Marburg virus, and Lassa Virus.

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Peng studied bats to understand why they carried such dangerous pathogens inside them but never get sick.

Normally, SARS-like Coronavirus found in bats can not infect humans. Bat virus would have to be genetically engineered in a lab or evolve naturally in nature to infect humans.

The theory is that Peng and his team of researchers - after discovering they couldn't make the bats sick - began experimenting with bat Coronavirus to modify it to bind to human ACE2 receptor cells in the lungs to infect humans.

Zerohdege.com reports that Peng studied the STING pathway immune defenses in bats and injected the bats with genetically altered virus to overcome their pathways in order to make the bats sick. But the virus did not enter the bat cells.

Peng discovered that the combined SARS-like Coronavirus and HIV superbug could not attach to bat ACE2 receptor cells.

But the superbug was able to enter human cells via human ACE2 receptor cells.

Peng justified his research by claiming he modified the bat virus in order to develop a vaccine before the bat virus could naturally evolve to infect humans in nature.

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Does your minor child own a cell phone? If the answer is yes, he or she has probably been exposed to "sexting" or sexual text messages.

A new study shows 37% of children who own cell phones are exposed to sexting by age 13. The data for the study came from a parenting app called Jiminy that allows parents to regulate the content their children see on the Internet.

The company found that 14.8% of children who own a smartphone had sent or received a sexual text message by age 10 and more than 37% had sent or received sexting messages by age 13.

Jiminy warns parents that their children are far more open to sexual exploration online, which puts them at risk of being approached by sexual predators.

"Sexting is quickly becoming a normative form of sexual exploration among preteens and teens," the study finds. "As such, parents would expect the real possibility that their children may be approached by others, known or unknown, or approach others in a sexually explicit manner."