Researchers studied the effects of social media on mental health in teenagers

Scientists identified a new gene that affects how the body processes carbohydratesThe government announced plans to build more clinics in rural areas with limited healthcare access

A popular online retailer offered free shipping on all orders during its annual saleResearchers found that spending time in forests can improve respiratory health and reduce allergiesThe police department added more officers to patrol busy shopping areas during weekends

A luxury hotel chain planned to renovate its rooms to be more energy-efficient and eco-friendlyDoctors recommended that people limit their intake of sugary drinks to prevent obesity

The local zoo offered educational programs for school groups to learn about wildlife conservation

A new study showed that regular exercise can improve bone density in older adultsPolice used facial recognition technology to identify a suspect in a decades-old cold case

The weather service warned of dangerous thunderstorms with hail and high windsCollege students won a national science competition with their invention that purifies water

A bank introduced a new checking account with no monthly fees and cashback rewardsMedical researchers developed a new vaccine that protects against multiple flu strains

(责任编辑：郑进一)