What Are Fast-Twitch Muscle Fibers and Why Is it Important to Keep Them Strong?
They're responsible for high-intensity exercise like sprinting and heavy lifting—but only for short periods of time.
Recommended Stories
Yahoo SportsFormer MLB infielder, Little League World Series star Sean Burroughs dies at 43
The seven-year major leaguer collapsed while coaching his son's Little League game on Thursday.
- Yahoo Sports
Dolphins owner Stephen Ross reportedly declined $10 billion for team, stadium and F1 race
The value of the Dolphins and Formula One racing is enormous.
- Yahoo Sports
The best RBs for 2024 fantasy football, according to our experts
The Yahoo Fantasy football analysts reveal their first running back rankings for the 2024 NFL season.
- Yahoo Sports
Juan Soto’s unapologetic intensity and showmanship are captivating the Bronx and rubbing off on teammates: ‘Literally every pitch is theater’
The 2024 Yankees have rediscovered their bravado and hold the second-best record in the AL, thanks in large part to the superstar outfielder.
- Yahoo Finance
The FDIC change that leaves wealthy bank depositors with less protection
Affluent Americans may want to double-check how much of their bank deposits are protected by government-backed insurance. The rules governing trust accounts just changed.
- Autoblog
Which pickup trucks get the best fuel economy? Here are the tops for gas mileage (or diesel)
Trucks aren't known for being fuel efficient, though times are changing. These are the trucks with the best gas mileage in various segments.
- Yahoo Sports
Timberwolves coach Chris Finch calls Jamal Murray's heat-pack toss on court 'inexcusable and dangerous'
Murray made a bad night on the court worse during a moment of frustration on the bench.
- Yahoo Sports
Former NBA guard Darius Morris dies at 33
Former NBA guard Darius Morris has died at the age of 33. He played for five teams during his four NBA seasons. Morris played college basketball at Michigan.
- Yahoo Sports
Wide receiver rankings for 2024 fantasy football
The Yahoo Fantasy football analysts reveal their first wide receiver rankings for the 2024 NFL season.
- Yahoo Finance
Former House Speaker Paul Ryan says he’s not voting for Trump : 'Character is too important'
Ryan says he would be writing in a Republican candidate instead of voting for Donald Trump.