
Heat Fells More Distance Runners Than Do Hearts
An analysis of 130,000 runners in events during a seven-year span revealed that competitors were 10 times more likely to experience heat stroke than serious cardiac problems. Dina Fine Maron reports
Dina Fine Maron, formerly an associate editor at Scientific American, is now a wildlife trade investigative reporter at National Geographic.

Heat Fells More Distance Runners Than Do Hearts
An analysis of 130,000 runners in events during a seven-year span revealed that competitors were 10 times more likely to experience heat stroke than serious cardiac problems. Dina Fine Maron reports

Cross-Border Ebola Outbreak a First for Deadly Virus
Weeks ahead remain fraught with uncertainty as pathogen jumps borders and appears in Africa’s largest city

The Hunt for Antibiotic-Resistance Hotspots
When patients take too many unnecessary antibiotics it inches us ever closer to a world where essential drugs are no longer effective. More than two million people in the United States develop antibiotic resistant infection each year and some 23,000 of them die as a result.

Prescription Refill Appearance Change Puts Patients off Meds
When refilled prescriptions for post–heart attack care resulted in the same medication looking different in shape or color, patients were significantly more likely to stop taking their meds. Dina Fine Maron reports

Heparin Does Not Reduce Pregnancy Complications, and May Create Some
A commonly used blood thinner does not appear to lower the risk of blood clots or miscarriage during pregnancy

First Local Case of Tropical Disease Chikungunya Debuts in the U.S.
The day we knew would come is finally here. The first locally acquired case of the tropical disease chikungunya was reported in the U.S. today.

Poor Oversight Catches Up with High-Security Infectious Agent and Disease Labs
The Centers for Disease Control plans to take measures to better protect lab workers and the rest of us from dangerous biological samples

Heavy Metal Headbanging Rare Risk Revealed
Headbanging can cause pain or even whiplash. But a 50-year-old Motörhead fan developed a more serious condition, bleeding in the brain that required surgical repair, after headbanging at a concert. Dina Fine Maron reports

CDC Botched Handling of Deadly Flu Virus
The third recent mistake in handling of pathogens is a “wake-up call,” says Centers for Disease Control head

HIV Detected in “Cured” Mississippi Baby, Creating Huge AIDS Therapy Setback
The infant was placed back on medication but the clinical trial to replicate virus suppression is still expected to proceed

Diet during Pregnancy Linked to Diabetes in Grandchildren
New work from the University of Cambridge solidifies link between epigenetic effects from in utero diet and health problems across generations

Should Prisoners Be Used in Medical Experiments?
History is rife with unethical experiments on inmates. But with proper safeguards prisoner studies may hold the key to the accurate representation of vulnerable groups and lead to health benefits

Robotic Exoskeleton Gets First-Ever FDA Approval
The ReWalk exoskeleton allows some people paralyzed from the waist down to walk again, with the aid of crutches. Dina Fine Maron reports

Does Extreme Heat Boost Your Chances of Pulling a Hamstring?
Pulled hamstrings took out two U.S. players at the World Cup. Why?

Tanning Mice Get Physically Addicted
Mice regularly exposed to UV light produced feel-good endorphins and behaved like addicts. If humans do, too, it could explain why we seek sun, despite damage. Dina Fine Maron reports

Fact or Fiction?: Carrots Improve Your Vision
Can scarfing carrots really help you see better in the dark?

Nasty Mosquito-Borne Virus, Now in Puerto Rico, Expanding its Reach
It's summertime so when the weather is fine many of us head outdoors. But there lurk mosquitoes, an all-too-familiar menace. What's more, a wave of mosquito-borne tropical disease that first appeared in the Western Hemisphere in late 2013 has now spread across the Caribbean, stoking concerns about a debut in the continental U.S.

HIV on Trial: An Attempt to Cure the World’s Smallest Patients
New global clinical trial aims to replicate the mysterious “Mississippi baby” success

Wikipedia Dicey as Medical Info Source
Researchers who compared peer-reviewed articles to the Wikipedia pages for the 10 most costly medical conditions in the U.S. discovered incorrect information on nine out of 10 pages. Dina Fine Maron reports

World Cup to Debut Mind-Controlled Robotic Suit
Scientific American speaks with the scientist behind an innovation that will enable a paralyzed person to walk and “feel” it

Heroin Has Expanded Its User Base
Compared with 50 years ago, today's heroin user is whiter, more suburban and had prescription opioids for a gateway. Dina Fine Maron reports

New Tanning Bed Rules Link Lamps to Cancer
FDA action will put new warnings on the devices, regulate them like other machines that emit radiation

Obama to Host Sports Concussion Summit
The White House supports new funding for youth-focused head injury research

Laser Light Coaxes Damaged Rodent Tooth Repair
Low-power laser light shined on damaged rat teeth activates growth factors that cue stem cells to generate the tooth constituent dentin, leading to regeneration. Dina Fine Maron reports