Behind the scenes of "The Bachelor."

"20/20" follows three families whose young kids have mental illnesses.

Man Accused of Killing Favorite Cousin

The lives of the 2010 Oscar nominees before stardom.

Inter-faith couple's marriage turns toxic, religion becomes battleground.

Golf champion apologizes in first public statement since sex scandal.

Barbara Walters' Special "Stand By Your Man?"

Former aide Andrew Young reveals role in the John Edwards scandal.

Teen Sues Over 'Sex Demands' at Work, Lady Gaga Interview, Dental Chain's Medical Fraud Settlement

20/20 special "Earthquake Haiti: Race to Save a Country."

Combat 5 Beauty Enemies,Osteoporosis vs. Osteopenia, Seasonal Affective Disorder

Double Hand Transplant, Losing Sleep Over Daylight Saving Time?, Healthy Yogurt Choices

Silent Killer: Hepatitis C, Low Male Desire, Wild Health Stories of the Week

Women's Weight Loss Battles, Healthy Salad Choices, Recipes for Delicious Vegetable Desserts

Osteoporosis Drugs and Broken Bones, Reversing Hair Loss, Habits of the Formerly Overweight

World Glaucoma Week, Prepare for Spring Break, Pet Separation Anxiety

Vaginal Births After C-Sections, Brooklyn Decker's Workout, Rocco DiSpirito's Low-Cal Meals

Dental Care Don'ts, The Athlete's Palate, Go Inside the Operating Room

Computer vision syndrome, Sanfilippo syndrome, and a new yoga iPhone app.

How Olympian Got His Vision Back, Conscious Eating, Coffee Talk: Health Hazards

Living in 2-D, Energy-Boosting Meals, Fighting Chronic Fatigue

Aspirin Therapy for Breast Cancer Survivors, Cosmetic Surgery Corrections, Overweight Babies

Gestational Diabetes, De-Puff Your Eyes, Laser Removal for Unwanted Hair

Hospital Acquired Infections, Probiotic Sources, Pet Separation Anxiety.

Choking Hazards, Growth Spurts in Children, Energy Makeover

Common Cold, Teen's Weight Loss Journey, Strengthen and Tone Back Muscles

Natural Breast Augmentation, Childhood Obesity, Yoga

Winter Injuries, Alternatives to Soda, 'Good' Fat for Your Heart

Medical Care at the Olympics, Calm a Colicky Baby, Acne Treatments

Heart Health, Premature Ovarian Failure, Allergen-Free Baking

Barbara Walters reflects on 29 years of Oscar specials and interviews 2010 nominees Mo'Nique and Sandra Bullock.

David Muir reports on the relief efforts and mass exodus in earthquake-ravaged Haiti.

In his first State of the Union address to Congress, President Obama focuses on the economy, health care and Iraq and Afghanistan.

Cold Case; Nightmare Flight; Platelist

Obama and Health Care; MTV; Afghanistan Vets

Calorie Count; Chatroulette; Adam Lambert.