Organizers want the July 4 fireworks in the nation’s capital to break the world record. But the fun will also come with air pollution and possibly headaches for pet owners and zoo keepers. By Quinn ...

CDC urges people to prevent mosquito bites as West Nile virus season hits a strong, early start Did the milk expire? California bans ‘sell by’ food labels to cut food waste Food Beginner-friendly ...

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Heeva Alavi, an Iranian-American, writes about her family’s mixed emotions about the World Cup, while Aariv Shah reflects on the SpaceX I.P.O. By The Learning Network We invited teenagers to create an ...

MSN via Barron Kerry Stewart, an exercise physiologist and professor of medicine at Johns Hopkins, says exercise capacity "definitely declines" as we age. "With regular exercise, the decline won't be ...