Research & Discoveries

Xylitol is a common sweetener used in a variety of products, including gums, oral care products, beverages, and food.

Experts explain how much may be enough–and who should be cautious.

A small study linked earlier eating to greater cognitive gains despite equal weight loss.

The same foods have different consequences for people in different metabolic states.

For many, attention-deficit/hyperactivity disorder has a clear—and fixable—root cause.

For decades, confirming Alzheimer's disease meant a spinal tap or an expensive brain scan.

A new study on three dangerous mosquito species finds each one is drawn to different skin chemistry.

Researchers found a brain pathway that may explain why glucosamine affects cognitive decline differently.

Every 10 percent increase in cumulative UPF consumption was linked to nearly 2 percent smaller subcortical brain regions.

The findings highlight how visible metrics and unpredictable rewards may shape posting behavior and keep users engaged.

Whether eating red meat raises blood sugar depends on who you ask, according to a new study.

Researchers in Milan used virtual reality to test whether years of Instagram use affects how people recognize their own face.

Improvements in the oral microbiome and increased saliva acidity appeared to enhance the body's nitrate–nitrite–nitric oxide pathway.

The body may have a hidden tissue repair trick up its sleeve.

Dentists explain how alcohol may affect the balance of bacteria in your mouth.

Your morning yogurt might be missing two ingredients that could give your gut bacteria a boost.

A Finnish clinical trial found that partial meniscectomy may accelerate osteoarthritis in middle-aged and older patients.

A study suggests that scent may change how the brain perceives physical effort, making workouts feel less demanding.

Here’s how significant the risk is and when to see a doctor.

A recent study suggests coffee reshapes the gut microbiome in ways that influence mood, cognition, and inflammation.

While vitamin C is best known for immune support and antioxidant defense, it plays several underappreciated roles in the brain.

Higher amounts of caffeine may cause problems such as high blood pressure, the organization said.

What parents can do to reduce severity without avoiding necessary immune exposure.

The same caffeine that helps people stay focused during the day also makes it harder for them to fully rest at night.

The secret to a younger brain might be a second—or third, or fourth—language.

Kratom is easy to obtain without a prescription and is often marketed as a natural remedy, leading more people to try it.

A study comparing plant-based products with their animal-based counterparts found more non-food industrial additives in the alternative products.