In the photo above taken on June 7, 2017, shows hypodermic needles that were recovered from the Merrimack River in 2016, at the Clean River Facility facility in Methuen, Massachusetts. Syringes left by drug users amid the heroin crisis are turning up everywhere, creating a pollution threat. People, often children, risk getting stuck by discarded needles, raising the prospect they could contract blood-borne diseases such as hepatitis or HIV or be exposed to remnants of heroin or other drugs. (AP...

At a Glance According to health experts, it's unlikely for mosquitoes to weather the storm enough to rapidly spread the disease.Floodwaters would wash away any existing larvae populations, the CDC says. Tropical systems bring so many threats to the mainland– damaging winds, floods and displaced wildlife. With the Zika virus on everyone's mind, you might think all that water from a tropical storm orhurricane could yield a brand-new breeding ground for the disease. According to health experts, past flooding events...

1. Hawaii (Luca Bravo/Unsplash) No other state seems to be able to top Hawaii, which was named the happiest state for the sixth time in a row, according to a . Colorado also joined the top ten list for the ninth straight year. Both Hawaii and Colorado are the only two states to continuously make it to the top ten. Sadly, West Virginia and Kentucky were ranked as the unhappiest states for the eighth year in a row. And for...

A runner holds his knee to try to relieve discomfort. Results from a recent study indicate that warmer temperatures causes an increase in Google searches for joint pain. This led scientists to believe that nicer weather causes people to become more active, which is more likely to cause strain on their joints than the weather itself. (Thinkstock/grinvalds) Thanks to the old myth that says weather can increase joint pain, many believe rainy days causeaches. However,onlinesearch trendsfor weather-related joint pain paintan...

Signs were put up in parts of Devon Aire Park after elevated arsenic levels were found in the soil in late 2014. (Screenshot via CBS Miami video) At a Glance Elevated levels of arsenic were found in the soil at Miami's Devon Aire Park in late 2014.Officials said there was no health risk, but have since spent $5 million to replace the soil.The park is a recess and outdoor activity spot for children at an adjacent school. Residents of a...

Researchers with the University of Texas at Austin have developed a pen that detects cancer in seconds, a vast improvement to the cancer diagnosis process. ...

A pamphlet educating people about mosquitoes hangs on a fence as workers with the Miami-Dade County Mosquito Control Department inspect a neighborhood on April 5, 2017 in Miami Beach, Florida. (Joe Raedle/Getty Images) At a Glance While cases have significantly declined, the Zika virus hasn't completely vanished.Pregnant women are still advised to avoid areas where the virus is known to be present. Last summer, it seemed the whole world was paralyzed with fear about the spread of the Zika virus....

LifeVac is a plunger-like anti-choking device that serves as a backup if and when the heimlich maneuver fails a choking victim. ...

At a Glance Concerns surrounding the health of residents in a Los Angeles neighborhood are rising again after the 2015 gas leak at Aliso Canyon. Some health officials report seeing similar cancers in multiple people. A physician conducting independent research discovered a chemical linked to cancer in more than 100 tested patients. Two years after the worst gas leak in U.S. history, health officials and residents in a Los Angeles, California, neighborhood are still concerned about the impact the methane...

At a Glance A recent study suggests flu vaccines have been less effective because they're made inside chicken eggs.Vaccines grown in eggs develop irregular mutations that stop the body from responding to the vaccine.They determined vaccines not grown in eggs get a better response. The effectiveness of flu vaccines has long been questioned, but a recent study suggested their drop in success is because they’re made insidechicken eggs. According to the study, vaccine strains grown in eggs typically have ....

At a Glance Beach sand can be harmful to children, warns the EPA.Hand sanitizer and beach shoes are some of the items you can use to keep your kids safe. Summer's here, which may mean a family vacation at the beach. Aside from sharks, sunburns and such, another hazard you may not be aware of is beach sand, which may contain pollutants and bacteria that is especially harmful to children. The Environmental Protection Agency warns that swimmers and beachgoers due...

A team of researchers found that wounds—especially those from burns—heal faster during the active part of the day. ...