If you are an introvert, force yourself to be an extravert. You'll be happier.

That's the suggestion of the first-ever study asking people to act like extraverts for a prolonged period. For one week, the 123 participants were asked to - in some cases - push the boundaries of their willingness to engage, by acting as extraverts. For another week, the same group was asked to act like introverts.

For decades, physicists have been attempting to reconcile quantum mechanics, the physics of the very small, with gravity, the physics of the very large. While many academics are working on quantum gravity, they often use models that don't consider certain aspects of our own universe, like its accelerated expansion. A team at the Okinawa Institute of Science and Technology Graduate University (OIST) reports a new approach to quantum gravity using a model that more closely matches our reality.

Many Americans use a ride-hailing service -- like Uber or Lyft -- to get to and from work. It provides the privacy of riding in a personal car and the convenience of catching up on emails or social media during traffic jams. In the future, self-driving vehicles could provide the same service, except without a human driver.

But would consumers be willing to ride in a driverless car?

Quarks, bosons, electrons ... Identifying elementary constituents of matter, and the manner by which these particles interact with each other, constitutes one of the greatest challenges in modern physical sciences. Resolving this outstanding problem will not only deepen our understanding of the early days of the Universe, but it will also shed some light on exotic states of matter such as superconductors.

DURHAM, N.C. -- A potential carcinogen that has been banned as a food additive is present in concerningly high levels in electronic cigarette liquids and smokeless tobacco products, according to a new study from Duke Health.

The chemical -- called pulegone (pronounced pju-leh-goan) - is contained in menthol and mint flavored e-cigarettes and smokeless tobacco products. Because of its carcinogenic properties, the U.S. Food and Drug Administration banned pulegone as a food additive last year in response to petitions from consumer groups.

Researchers from the University of Copenhagen have studied what it means for children to have parents who are refugees and have PTSD. The study shows that these children have a significantly higher risk of contact with the psychiatric system. The researchers believe that there should be focus on the problem and that early measures and treatment options should be developed.

Systemic lupus erythematosus, a chronic autoimmune disease commonly referred to as lupus or SLE, has been compared to volatile, unprovoked brawls within the body.

The disease, which has no cure, operates much like an allergic reaction gone awry: When activated, the immune system also attacks the body's healthy cells, tissues, and organs, causing inflammation and producing a host of symptoms that, though unique to each person, are universally called flares.

A research group led by Professor Tomoyuki Furuyashiki and Associate Professor Shiho Kitaoka (Graduate School of Medicine) in collaboration with researcher Yasuhisa Ano of Kirin Holdings have made discoveries regarding the effect of the dipeptide Leucine-Histidine (LH) in suppressing microglial activation and depression-associated emotional disturbances. LH dipeptide is found in fermented foods such as blue cheese and natto (fermented soy beans). Foods rich in LH dipeptide may be a safe, preventive method for maintaining good mental health.

An innovative solution used to prevent common brain infections in patients having surgery for hydrocephalus has been found to significantly reduce infection rates according to a report published in The Lancet today (12 September 2019).

Hydrocephalus is a build-up of fluid on the brain. The excess fluid puts pressure on the brain, which can damage it. Approximately one out of every 500 babies is born with hydrocephalus, making it the most common reason for brain surgery in children.

WASHINGTON, D.C., September 12, 2019 -- African Americans are seeing growth in many engineering and physical sciences fields, but they are not progressing at the same rate when compared to the general population.

A report from the American Institute of Physics (AIP) Statistical Research Center (SRC) examined the number of bachelor's degrees earned from 2005 to 2015 and separated out the numbers for African Americans from the rest of the students. The data was gathered by the National Center for Education Statistics from postsecondary institutions in the United States.

WASHINGTON, D.C. (Sept. 10, 2019) - The Trump administration's "public charge" rule, which would subject legal immigrants to a public charge determination if they use public health, nutrition and housing benefits for which they are eligible, represents a major threat to health, according to a "friend of the court" brief filed Sept. 10.

LA JOLLA--(September 10, 2019) During high stress situations such as making a goal in soccer, some athletes experience a rapid decline in performance under pressure, known as "choking." Now, Salk Institute researchers have uncovered what might be behind the phenomenon: one-way signals from the brain's emotion circuit to the movement circuit.

LAWRENCE -- New findings from University of Kansas experimental nuclear physicists Daniel Tapia Takaki and Aleksandr (Sasha) Bylinkin were just published in the European Physical Journal C. The paper centers on work at the Compact Muon Solenoid, an experiment at the Large Hadron Collider, to better understand the behavior of gluons.

Children's persistence in the face of challenges is key to learning and academic success. However, we know little about how parents and educators can help foster persistent behavior in children before they begin formal schooling. A new U.S. study looked at the interactions of preschool-age children with adults to determine how they affected the children's persistence. It found that the efforts adults put into their actions, successes and failures, and words affected children's persistent behavior to differing degrees.

Philadelphia, September 10, 2019 - There is growing evidence that caregivers of patients with cardiovascular disease (CVD) are vulnerable to developing their own poor cardiovascular health. Investigators report in the Canadian Journal of Cardiology, published by Elsevier, on a proof-of-concept couples-based intervention in a cardiac rehabilitation setting.