The 19-year-old suspect arrested in connection with the blade attack against New York City cops faces federal charges.

ABC News' Dr. Jennifer Ashton shares the more than just physical benefits.

A registered dietitian shares tips to know about the version of the keto diet.

Registered dietitian Samar Kullab shares foods to add to your diet for mental health.

Dry January means having no alcohol for the entire month.

Actress Valerie Bertinelli welcomed the new year, saying 2023 came in "so much happier than last year," and calling Jan. 1 "the first day of the rest of my life!"

Jay Ell Alexander is the CEO of Black Girls Run.

Trevor Bickford, 19, is facing attempted murder and attempted assault charges for allegedly attacking New York Police Department officers Saturday night.

Erika Rischko describes herself as an 83-year-old "fitness junkie."

Trevor Bickford, 19, has been charged with two counts of attempted murder of a police officer and two counts of attempted assault.

Law enforcement sources told ABC News 19-year-old suspect Trevor Bickford aligned himself with jihadist statements in statements and writings.

Experts answer questions about transitioning to plant-based eating.

Staying dry for January may also help jump-start people to give up alcohol for longer.

A health coach who has done Whole30 multiple times shares her best advice.

The ketogenic diet is a high fat, low carbohydrate way of life.

Highlights from New Year's Eve celebrations around the globe.

Crowds celebrate the new year in Times Square.

Host of the award-winning podcast "Moms Don't Have Time To Read Books," Zibby Owens, joins "GMA" to share her top recommendations for new reads in the New Year.

Suzanne Ryan is the author of the new book "Beyond Simply Keto."

Rain and storms may impact New Year's Eve celebrations in the Northeast and California.

Revelers ring in New year in Karachi, Pakistan.

With just hours to go before the ball drop in New York City's Times Square, ABC's Phil Lipof shows us the preparations for the full-scale gathering which will be watched worldwide.

For the first time since the pandemic began, there will be a capacity crowd with no COVID restrictions.

The country celebrated the end of 2022 with a dazzling fireworks display in Auckland, New Zealand.

The city celebrated the end of 2022 with a beautiful fireworks show.

City of Bangkok enjoys beautiful fireworks display to ring in the New Year.

The tradition returns to full pre-pandemic capacity this year.

The vice president of Times Square Alliance Signature Events reveals why this year’s New Year’s Eve is different than previous years.

Jessie James Decker, co-host of this year’s “Dick Clark’s New Year’s Rockin' Eve with Ryan Seacrest,” is helping “GMA” count down to the biggest party of the year.

From a rom-com classic to family fun films, "GMA" has five movie suggestions to watch this weekend.

In just over 24 hours, Times Square will be packed with crowds to watch the famous ball drop.

It'll be a rainy New Year's Eve for the East Coast and the West Coast.

Fashion expert Erica Wark joins “GMA” with a handful of dazzling looks to rock at any New Year’s celebration.

Tim Laird, chief entertaining officer of America’s CEO, shares his top recipes to help ring in the new year.

ABC News' Will Ganss has more on the pre-New Year’s celebration where revelers declare what they’re ditching in the new year.

The 'Live with Kelly and Ryan' co-host will host the New Year's Eve party for the 18th time and shares what viewers can expect during the special.

The host of "Dick Clark’s New Year’s Rockin’ Eve with Ryan Seacrest" shares a behind the scenes scoop on everything from wardrobe to performances.

Start small and reward yourself for successes, experts say.

Play-Doh expert Jason Loik shows how to make life-like food out of Play-Doh, an activity the whole family can enjoy doing together.

According to Match.com, the week between Christmas and New Year's is the kickoff of peak dating season with dating sites at their busiest.

With crews putting the final touches on the Big Apple’s New Year’s Eve celebration, ABC’s Will Ganss has more on how revelers across the country are preparing to ring in 2023!

Almost half of all Americans make a New Year's resolution each year, data shows.

Megan Faraday simplified the keto diet and found weight loss success.

Camille and Marlon Jones share their healthy nacho recipe with "GMA."

Brandee Johnson says her weight loss helped save her life.

Beth Handel talks about the secret to help lock your New Years resolution.

Dr. Ethan Kross, best-selling author, joins to talk about new book "Chatter, The voice in our head, why it matters, and how to harness it."

Janai Norman reports on the buzziest stories of the day in "GMA" Pop News.

Watch Brazil's dazzling firework show by the water to bring in 2022.

Highlights from New Year's Eve celebrations around the globe.