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Scientists May Have Pinpointed How Much Exercise Your Heart Needs to Stay Healthy
It's probably much less than you thought.
HEALTH
Watch a Tree Release a Massive "Pollen Bomb" Into the Air
Our eyes are itching just looking at it.
The Real Reason the Lyme Disease Vaccine Had No Shot
The explanation might tick you off.
15 Fascinating Facts About Florence Nightingale
Florence Nightingale, the founder of modern nursing, left a revolutionary mark on sanitation, healthcare ... and pie charts.
6 Things You Might Not Know About Ebola
2. It hijacks the immune system.
The Math Behind the Classic Eye Chart Is Surprisingly Complex
Understanding the design can tell you a lot about how vision works.
Think You're Dehydrated? This Skin Test Will Tell You in Seconds
If you fail the test, it's time to visit the water cooler.
Calorie Counts Arrive in All Fast Food Locations Today
In the works since 2010, the regulation has officially gone into effect.
The Best Homemade Remedy for Sunburn, According to a Dermatologist
Here's one way to feel better after being baked.
Why Do Optometrists Blow Puffs of Air Into Your Eye?
Even more importantly: Is it really necessary?
Is 'Dry Drowning' Real?
Don't let the viral stories scare you.
3 Ways to Tell Whether You Have Allergies or a Cold
They have remarkably similar symptoms, but doctors say there are a few ways to tell them apart.
A Breakthrough Global Study of Depression Finds 44 Genetic Variants Linked to the Disease
In the largest study of its kind, researchers offer a major step forward in how we understand depression.
This California Gym Runs on Energy Generated by Your Workout
Eco-friendly equipment saves Sacramento Eco Fitness hundreds of dollars on electricity each month.
These Are America's 10 Worst Cities for Allergy Sufferers
Spring (a.k.a. pollen) is in the air.
Women Suffer Worse Migraines Than Men. Now Scientists Think They Know Why
This could change the way we treat the condition.
The Surprising Link Between Language and Depression
The overuse of certain words is a marker of depression.
Just 5 Alcoholic Drinks a Week Could Shorten Your Lifespan
And 10 drinks a week could shave two years off your life.
11 Things Contact Lens Wearers Should Never Do
Admit it—you do some of these all the time.
What's Really Happening When We See 'Stars' After Rubbing Our Eyes?
Don't worry—it's perfectly normal.
This New Gym Is Dedicated to Working Out Your Face
Let trainers give you facial massages and teach you how to make funny faces.
New App Uses Crowdsourcing to Find You an EpiPen in an Emergency
EPIMADA could help people having severe allergic reactions find someone with an EpiPen, stat.