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：魏建业)

• ·Health experts released new guidelines recommending that adults get at least seven hours of sleep per night to maintain optimal health.
• ·An airline announced it would reduce its carbon footprint by using more fuel-efficient planes
• ·Scientists discovered a way to use algae to produce biofuel that is cheaper than gasoline
• ·A new report showed that the number of electric vehicles on the road has doubled in the past two years
• ·A fashion brand announced it would stop using fur in its clothing lines to promote animal welfare
• ·A musician released a charity single with all proceeds going to disaster relief efforts
• ·The mayor announced a plan to add more crosswalks and pedestrian signals downtown
• ·A charity started a job training program for homeless people
• ·Research indicates that 8 hours of sleep improves memory retention
• ·The World Bank approved a $800 million loan to improve water supply systems in a poor country
• ·A severe hailstorm with golf ball-sized hail damaged crops on 50 farms in a rural area
• ·A popular music artist released a new album which topped the charts in over 25 countries within 24 hours
• ·A tornado touched down in a small town destroying several homes and a school
• ·Music festival adds second weekend due to high demand for tickets
• ·City hosts parade to celebrate local heritage and culture
• ·A museum displayed a collection of famous paintings on loan from another museum