Potential link between vitamin B3 and cardiovascular disease, study says
ABC News chief medical correspondent Dr. Jen Ashton discusses how excess niacin or vitamin B3 may be associated with an increased risk of cardiovascular disease, but more research is needed.
February 20, 2024
Examined
Examined
What’s next for Russia?
Jun 29, 2022What comes next after Texas school shooting?
May 25, 2022What's next for abortion rights in America?
May 03, 2022The new battle for voting rights
May 02, 2022How we can build a clean and renewable future
Apr 19, 2022The fight for Kyiv
Mar 11, 2022Examining extremism in the military
Apr 27, 2021Gun violence: An American epidemic?
May 03, 2023Border crisis: What’s happening at the US-Mexico border?
Jun 18, 2021Remembering George Floyd: A year of protest
May 25, 2021The source of COVID-19: What we know
Apr 07, 2021How did the GameStop stock spike on Wall Street happen?
Feb 12, 2021Why are people hesitant to trust a COVID-19 vaccine?
Dec 10, 2020How climate change and forest management make wildfires harder to contain
Sep 29, 2020Disparity in police response: Black Lives Matter protests and Capitol riot
Feb 23, 20212020 in review: A year unlike any other
Dec 22, 2020Examined: How Putin keeps power
Mar 12, 2021Why don’t the Electoral College and popular vote always match up?
Oct 29, 2020US crosses 250,000 coronavirus deaths
Nov 18, 20202nd Impeachment Trial: What this could mean for Trump
Feb 08, 2021Presidential transition of power: Examined
Dec 01, 2020How Donald Trump spent his last days as president
Jan 18, 2021How Joe Biden's inauguration will be different from previous years
Jan 15, 2021Belarus’ ongoing protests: Examined
Dec 04, 2020Trump challenges the vote and takes legal action
Nov 05, 20202020’s DNC and RNC are different than any before
Aug 17, 2020What is happening with the USPS?
Aug 20, 2020Voting in 2020 during COVID-19
Oct 13, 2020Disinformation in 2020
Oct 30, 2020
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
