Elmo Says 'Get Vaccinated' in New Video
Sesame Street star joins U.S. Surgeon General for vaccination video.
Chernobyl Survivor to Be Pushed in Team Hoyt Wheelchair for Boston Marathon
Alosha O'Brien, 30, will be pushed 26.2 miles for his second Boston Marathon.
Teen With Down Syndrome's Reaction to Getting 1st Job Will Make You Smile
Ben Sunderman waited for days for his acceptance letter.
See a Dog 'Tap Dance' After Getting Life-Changing Surgery to Fix Legs
North Carolina pup underwent surgery to fix his deformity last week.
Large Measles Outbreak Traced to Disneyland Is Declared Over
California health authorities say large measles outbreak is over.
The Real Reason Your Knuckles Crack
Researchers and the 'Wayne Gretzky of knuckle-cracking' solve the mystery.
Doctors Remove Huge Tumor From 3-Day-Old Infant
Abbey Monzietti was born with a grapefruit-sized tumor in her abdomen.
Meet the Transgender Man Who Could Be a Magazine Cover Model
Aydian Ethan Dowling is leading a contest to cover Men's Health magazine.
'Spice' Overdoses Send More Than 300 to ER in 2 Weeks
Synthetic marijuana sends people to the hospital in Mississippi and Alabama.
E-Cig Use Triples in Adolescents, CDC Says
Adolescent e-cigarette use has tripled from 2013 to 2014, according to the CDC.
Couple Surprises Family, Friends With 'Secret Twins'
They weren't just keeping quiet about whether it was a boy or a girl.
Watch Deaf Infant Hear His Mom for the First Time
Nine-week-old Elijah Cook overcomes his hearing loss.
'Skinny Mom' Gives Birth to Big Baby
Model Sarah Stage’s baby boy weighs in at 8 pounds, 6 ounces.
Mom Gives Up Anti-Vax Stance Just Before 7 Children Get Whooping Cough
Mom writes from quarantine after all seven children are infected.
Some KIND Bars Not So Healthy, FDA Says
FDA warns some KIND bars don't meet standards to bear "healthy" label.
Parents of 1st All-Girl US Quintuplets Recount 'Crazy' Experience
Babies are the first all-girl quintuplets ever born in the U.S.
Dr. Besser's Look at Life Inside the Hot Zone
Dr. Richard Besser reports on the growing outbreak from Monrovia, Liberia.
The 4 Most Confusing Things About Sugar
What's the deal with sugar? No doubt, sugar is the diet villain du jour.
Life Events That Can Lead to Divorce
Most couples face plenty of stressors and life changes, both big and small.
Ways Exercise Makes You Look and Feel Younger
The powers of a steady fitness routine are impressive.
Ways to Deal With Painful Sex
When you've always enjoyed sex and suddenly it hurts, it can be upsetting.
Meet the Window Washers That Transform Into Superheroes for Sick Kids
This rappelling trio brightens the day for pediatric hospital patients.
Twinless Twins Grieve Together
People whose twin has died have found one another on Facebook.
How Scientists and Doctors Use Baby-Friendly Tricks to Study Infants
The high- and low-tech ways scientists get babies to be happy test subjects.
8 Surprising Effects of Obesity
The extra weight ups the risk of common cancers, a new study found.
Cancer Lessons I Learned From a Fictional Teenage Boy
That love scene from "The Fault in Our Stars" is so intense.
Watch: Office Worker Accused of Posing as Dentist
Valbona Yzeiraj, 45, an officer manager at a Bronx, N.Y., dentist’s office, allegedly performed dental procedures for...
Watch: 'Spice' Overdoses in Mississippi, Alabama Send 300 to ER
In the past two weeks, more than 300 people in two states have gone to the emergency room from synthetic marijuana.
Watch: See a 9-Week-Old Baby Hear His Mother Clearly for the First Time
Elijah Cook was given hearing aids after being born with hearing loss.
Watch: Kind Bars Under Fire for 'Healthy' Label
The FDA says the fruit and nut bars violate their healthy labeling guidelines.
Watch: See Lab-Made Heart Cells That Actually Beat
Wake Forest researchers created the tiny heart cells by manipulating stem cells. (NO AUDIO)
Watch: Texas Woman Burned in Nail Polish Remover Accident
The 20-year-old victim sustained third-degree burns on half of her body.
Watch: Washington State Vaccine Law Enforced in Spokane Schools
Spokane public schools are pulling students from class who aren't in compliance with Washington's vaccination laws.
Watch: Softball Player's Mysterious Death Attributed to Meningitis
Madison Small. 18, died after complaining of a headache last week.
Watch: German Mom Pregnant With Quadruplets at Age 65
Annegret Raunigk is already a mother to 13 children and will soon retire as a schoolteacher.