What is multiple sclerosis?
Multiple sclerosis, or MS, is a chronic disorder where cells from the immune system attack the nerve cells of the central nervous system (CNS).
October 22, 2018
Additional Live Streams
Top Stories
Top Stories
Millions of Americans hit the sky and roads in post-Christmas travel rush
3 hours agoWinter weather and high wave alerts from the West
1 hour agoDozens killed in fiery crash in Kazakhstan
2 hours agoTaxi cab strikes pedestrians in NYC’s Herald Square
2 hours agoFDA raises recall on Costco eggs to highest alert
2 hours agoBasketball, football and Beyoncé take over Christmas Day
2 hours agoNew Year’s Eve countdown ramps up
31 minutes agoMastercard spending report on American’s holiday shopping
1 hour agoStarbucks and Amazon workers back on the job
1 hour agoFrom ‘Wicked’ to Taylor Swift: Looking back on 2024
1 hour agoRetailers slash prices to clear inventory post-Christmas
2 hours agoNew lawsuit drops in ‘It Ends with Us’ legal battle
2 hours agoChristmas messages from the royals
1 hour agoMillions wake up to a white Christmas
Dec 25, 2024Body discovered in wheel well of plane at Maui airport: Police
4 hours agoChristmas blackouts in Ukraine after 'massive' Russian strike
4 hours agoBill Clinton out of the hospital
Dec 25, 2024Amazon van goes up in flames
Dec 25, 20241 killed, 5 injured in boat explosion
Dec 25, 2024Welcome to the town with the most Christmas spirit in America
Dec 25, 2024Inside Notre Dame
Dec 25, 2024The NBA gets animated with Disney for 'Dunk the Halls'
Dec 25, 2024Delivering unclaimed cash for the holidays
Dec 25, 2024Dad runs to hospital after he finds out his wife is in labor
Dec 25, 2024Celebrating the 500th episode of 'Dancing with the Stars'
Dec 25, 2024Trump slams Biden over death penalty commutations
Dec 25, 2024Adventures in Paris for the 2024 Olympics
Dec 25, 2024Snoop Dogg talks career, his latest movie and making new music
Dec 25, 2024Robin Roberts' nephew shares journey as a stem cell donor
Dec 25, 20241-on-1 with Elton John
Dec 25, 2024
ABC News Live Presents
ABC News Live Presents
Shot in the Dark: Weight Loss Injection Wars
Nov 25, 2024October 7th: The Race to Survive
Oct 07, 2024January 6th: The Fight to Rewrite History
Oct 03, 2024The President and First Lady of Ukraine | Robin Roberts Reporting
Sep 25, 2024Maui Strong 808: Rising from the Ashes
Aug 08, 202410 Million Names
Jun 19, 2024Generation Swipe
May 23, 2024Amplified: Asian American Native Hawaiian Pacific Islander Voices
May 16, 2024The Power of Us: People, Climate and Our Future
Apr 25, 2024Trashed: The Secret Life of Plastic Exports
Apr 23, 2024Toll of War: The José Andrés Interview | Martha Raddatz Reports
Apr 08, 2024Fertility in America | Rebecca Jarvis Reporting
Mar 28, 2024One-on-One: A Conversation with Robin Roberts and Caitlin Clark
Mar 15, 2024After the Fall: A Conversation with Robin Roberts and Jenifer Lewis
Mar 12, 2024Prince Harry's Mission: Life, Family and Invictus Games
Feb 23, 2024Tackling Mental Health | Michael Strahan Reports
Feb 16, 2024Severed: Diabetes Denial and Mistrust
Feb 15, 2024Exodus: Global Migration
Jan 26, 2024Battle Cry: Fighting Assault in the Military
Dec 08, 2023Fallout: Two Nations Under Uranium
Nov 30, 2023The American Classroom
Nov 17, 2023Disaster Uninsured
Nov 16, 2023Hispanic Heritage Month: Entre Nos - 1st Gen
Sep 28, 2023Hispanic Heritage Month: Entre Nos – 2nd Gen
Oct 09, 2023Hip-hop at 50: The architect, the First Amendment and the fashion explosion
Aug 23, 2023Elliot Page: In His Own Words
Jun 19, 2023Culture Conversations - CC: AANHPI Heritage Month
May 25, 2023Trashed: The Secret Life of Plastic Recycling
May 24, 2023The Power of Water
Apr 20, 2023Tone Death: Loss & Hip-Hop
Mar 14, 2023
ABC News Specials on
Impact X Nightline: On the Brink
Dec 14, 2023Impact X Nightline: Unboxing Shein
Nov 27, 2023The Lady Bird Diaries
Nov 27, 2023Impact X Nightline: It's Britney
Nov 27, 2023Impact X Nightline: Natalee Holloway -- A Killer Confesses
Nov 27, 2023Impact X Nightline: Who Shot Tupac?
Nov 27, 2023Wild Crime
Oct 26, 2022Impact x Nightline
Oct 28, 2022Power Trip: Those Who Seek Power and Those Who Chase Them
Sep 27, 2022The Murders Before the Marathon
Sep 01, 2022The Ivana Trump Story: The First Wife
Jul 25, 2022Aftershock
Jul 18, 2022Mormon No More
Jun 22, 2022Leave No Trace: A Hidden History of the Boy Scouts
Jun 15, 2022Keeper of the Ashes: The Oklahoma Girl Scout Murders
May 20, 2022The Orphans of COVID: America's Hidden Toll
May 13, 2022Superstar: Patrick Swayze
Apr 14, 2022The Kardashians -- An ABC News Special
Apr 05, 202224 Months That Changed the World
Mar 30, 2022Have You Seen This Man?
Mar 22, 2022
