NewYorkTimes

Safa and Marwa Ullah, who were born in Pakistan, were separated in a 50-hour series of operations at Great Ormond Street Hospital. View original article Author:

Secret shoppers pretend to be sick to help make hospitals safer for everyone else. View original article Author:

Calorie restriction led to weight loss, lower cholesterol and less inflammation. Whether it extends life span and wards off disease long-term remains unproven. View original article Author:

How one scientist and his inaccurate chart led to unwarranted fears of wireless technology. View original article Author:

False rumors that children are fainting or dying have led parents to turn away vaccinators, threatening the campaign to eradicate the disease. View original article Author:

Lenses that transition in sunlight to become sunglasses help protect eyes from dust, bugs, drying breezes and, most important of all, the damaging effects of ultraviolet light. View original article Author:

Experts say other steps should include seeking shade, avoiding the most intense hours of sun exposure and wearing hats and clothing to protect the skin. View original article Author:

Michael L. Johnson, a gay athlete convicted of not disclosing his H.I.V. status to sexual partners, was released 25 years early and has become a galvanizing force to overhaul laws. View original article Author:

U.T.I.s are one of the world’s most common infections but many of the drugs used to treat them have become less effective as resistance to antibiotics grows. View original article Author:

How pets have changed the lives of people living with anxiety, pain or grief. View original article Author: