Miami-Dade shrugs off battleground health-care rhetoric
Most uninsured patients in Miami-Dade County did not routinely link their concerns about health care to their voting intentions.
Exercise may protect the aging brain
A new study suggests that physical activity may mitigate cognitive decline in older adults.
Cleanliness is next to . . . the sink
Food-safety precautions can cut the risk of spreading disease in the kitchen.
Portraits and interviews of U.S. nurses
Also: A slew of workout DVDs might help offset holiday weight gain.
Help your child win the science fair
Also: Discovery Channel’s “Curiosity” series explores the daily struggles of human cells.
NASA to Mars rover: Are you there?
How the space agency can communicate in a matter of minutes with the Mars rover Curiosity.
Can too much caffeine kill you?
Questions about high-energy drinks arise in the wake of an FDA report on deaths.
A cave that Batman might appreciate
Conservationists hope the world’s first artificial bat cave will stave off a deadly fungus.
Scientists take a very close look at life
Photographers offer a microscopic view of the world in a competition sponsored by Nikon.
The Checkup
Smoke-free workplace laws linked to fewer heart attacks, study finds
Smoke-free laws may reduce incidence of heart attacks, largely by curbing exposure to second-hand smoke.
The Checkup
Monday is World Stroke Day
An estimated 795,000 strokes occur annually in the U.S. Do you know the risk factors, symptoms and what to do if someone's having a stroke?
The Checkup
Bystander-initiated CPR more likely in rich, white neighborhoods
People in cardiac arrest in a high-income, mostly white neighborhood are nearly twice as likely to receive CPR from a bystander, a study finds.
More from Health & Science staff
Health, Science & Environment Videos
Capital Weather Gang previews winter outlook for D.C. Council
Capital Weather Gang previews winter outlook for D.C. CouncilCapital Weather Gang previews winter outlook for D.C. Council
Capital Weather Gang previews winter outlook for D.C. CouncilQuick glimpse of National Zoo’s baby panda
The National Zoo’s panda cam caught a shot of mother panda Mei Xiang picking up her cub on Monday evening.Visitors flock to National Zoo to see baby panda
The National Zoo’s giant female panda Mei Xiang gave birth Sunday night. Visitors joined the new mother at the zoo Monday to celebrate the new baby.Flooding in Slidell after Hurricane Isaac
Parts of Slidell, a suburb of New Orleans, are flooded Thursday in the aftermath of Hurricane Isaac. U.S. Army National Guard members and residents with boats evacuated people stuck in flooded areas of the town.Isaac bears down on New Orleans
Tropical Storm Isaac, which was downgraded from a hurricane, continues to slowly ravage the New Orleans area. Lake Pontchartrain crashes onto Interstate 10 North outside the city to flood the area, and people asses damage around the city.Hurricane Isaac provides major surf at Louisiana lake
New Orleans residents take advantage of big waves and high winds before Hurricane Isaac makes landfall at Lake Pontchartrain.National parks feel budget squeeze
Many of America’s national parks and monuments are feeling the pinch of a 6% funding cut , with more budget challenges on the horizon.Health news from the wires
Why was teenager gasping for air?
Coughing spells confounded multiple specialists, but not an astute physician assistant.
What’s the better bulb: CFL or LED?
The incandescent light bulb is being replaced by CFLs and LEDs. Which is better for the environment?
Special Reports
Obesity in America 2010
One-third of U.S. children are overweight, leaving the health and productivity of an entire generation at risk.
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Halloween: The science of bats
Live Q&A;, 11 a.m. ET
Just in time for Halloween, a bat expert and a Post reporter live chat with readers about bats.