A leading fitness expert reveals four common walking mistakes that contribute to poor posture, joint pain, limited mobility ...

Walking is an excellent exercise for improving overall health, including functional strength. It won't build big, bulky muscles, but it can help increase lean muscle mass and burn excess body fat.

Start the day smarter. Get all the news you need in your inbox each morning. While walking builds some muscle, it isn't the big, bulky muscle mass that comes from spending a lot of time in the gym.