A new study finds fragrances in both conventional and botanical cleaning products can react with ozone in indoor air, quickly forming millions of nanoparticles that can travel deep into the lungs if inhaled.

A study of nearly 3 million women found those with endometriosis had a 46% higher risk of developing type 2 diabetes.

A University of Copenhagen study followed 130 adults after weight loss and found those who exercised had healthier blood vessels and lower inflammation than those relying on weight-loss medication alone.

New research suggests mild COVID can trigger lasting eye problems that standard eye exams may not detect.

A new study finds people with chronic stress who eat 25% of their daily calories after 9 p.m. are more likely to suffer constipation or diarrhea.

Large, new study finds never-married adults have a significantly higher risk of developing cancer—especially preventable types tied to smoking, infection, and reproductive care.

A new study finds people exposed to more artificial light at night are at greater risk for inflammation in their arteries and heart disease.