Maanvi Singh

According to the facial feedback hypothesis, the simple act of putting a smile on your face can boost your mood. But recent research shows pasting on a grin can have mixed results.

The Somali American model was also the first to wear a burkini in the Miss Minnesota USA pageant in 2016. Find out more about the garment — and the controversies it has sparked.

Many studies show that women are less willing to take risks than men are. But new research, on girls from a community in China run by women, offers insights into what leads to more risk taking.

A new study on maternal mortality finds that the death rate is up to 50 times higher in many African countries than in high-income countries.

A growing body of research shows keeping a log of what you are thankful for can lower stress, help you sleep better, and may even reduce the risk of heart disease. But it's not for everyone.

No longer do kids with concussions need to sit in dark rooms for days on end. For the first time in nearly a decade, the nation's pediatricians have loosened their guidance on concussion recovery.

The disease is hard to diagnose. And stage 2 patients have faced a week of infusions that can cause additional suffering. Now there's a new option.

There could be an upside to your phone addiction. Games like Tetris can reduce anxiety, according to new research. So if you've got Election Day jitters, go ahead and launch that app.

Hmong immigrants began losing native bacteria in their guts soon after arriving in the U.S., a change associated with more obesity. Eating an American diet plays a role but doesn't explain everything.

A new study surveying 3,000 teenage girls and boys in 25 countries, with a focus on developing nations, found that for every 15 boys who own a phone, only 10 girls do.

Fried chicken, mac and cheese and sweet drinks: A study suggests Southern cuisine may be at the center of a tangled web of reasons why black people are more prone to hypertension than white people.

Toddy is a type of palm wine made from the fermented sap of coconut flowers. But the best toddy shops in southwestern India are celebrated for the spicy, coconutty food they serve with the drink.

A new study suggests that modern-day Chinese might behave differently in coffee shops — depending on whether their ancestors grew rice or wheat.

We often think of resilience as something that comes from within. Syrian youngsters have a different perspective.

The Ebola-like virus is found mainly in North Africa, the Middle East and Central Asia.

Thanks to globalization and climate change, the pest has spread to 60 countries, attacking coconut, date and oil palm plantations, and costing millions of dollars in damages.

A new report from the World Health Organization looks at the causes — and how most of the deaths could be prevented.

A recent study gives thumbs up to the World Health Organization's 6-step plan. The problem is that lots of people — including health workers — fail to scrub.

It's got drama and romance. It's where Lupita Nyong'o got her start. And a new study shows it's not just entertainment.

Bad weather in southern Europe caused a brief shortage of veggies in the U.K. Prices went up and people panicked. Now they are thinking harder about where their food comes from.