Bad Bunny named Spotify's most-streamed artist of the year; BTS outfits featured in the band's "Dynamite" video go up for auction; Rita Ora apologizes for breaking lockdown rules after holding birthday party. (Dec. 1)

Rita Ora is in hot water after she held a birthday party over the weekend.

A group of researchers developed Power Theory, a model emphasizing the role of demography in political centralization, and applied it to the shift in power dynamics in prehistoric northern coastal societies in Peru. To test the theory, the team created a summed probability distribution (SPD) from 755 radiocarbon dates from 10,000-1,000 B.P. Researchers found a correlation between the tenets of Power Theory and power structure changes in early Peruvian societies.

A new study shows that among patients who have obesity and who tested positive for COVID-19, a past history of bariatric surgery was significantly associated with a lower risk of hospital and intensive care unit admission.

Compared with people who ate meat, vegans with lower calcium and protein intakes on average, had a 43 percent higher risk of fractures anywhere in the body (total fractures), as well as higher risks of site-specific fractures of the hips, legs and vertebrae, according to a new study.

Losing a few kilograms in weight almost halves people's risk of developing Type 2 diabetes - according to a large scale research study. The research shows how providing support to help people with prediabetes make small changes to their lifestyle, diet and physical activity can almost halve the risk of developing Type 2 diabetes. The findings come from the largest diabetes prevention research study in the world in the last 30 years. The clinical trial involved >1,000 people with prediabetes.

Diets high in red and processed meat, refined grains and sugary beverages, which have been associated with increased inflammation in the body, can increase subsequent risk of heart disease and stroke compared to diets filled with anti-inflammatory foods. A separate study assessed the positive effects eating walnuts, an anti-inflammatory food, had on decreasing inflammation and heart disease risk.

Researchers are discovering that social isolation affects the health of men and women in different ways -- including placing women at higher risk of high blood pressure.

Researchers have found that a type of common gut bacteria sometimes associated with inflammation, abscesses, bowel disease and cancer has a major silver lining: It seems to help prevent cardiovascular disease.

Researchers have identified a direct molecular link between meat and dairy diets and the development of antibodies in the blood that increase the chances of developing cancer. This connection may explain the high incidence of cancer among those who consume large amounts of dairy products and red meat, similar to the link between high cholesterol and an increased risk of heart disease.