Interesting post on the muscle system!

Interesting Facts: 

Muscles make up 40% of your total body weight.
It takes half as long to gain muscle than it does to lose it.
The smallest muscles are found in the middle ear.To take one step, you use 200 muscles.Humans are born with all the muscle fibers they will ever have.Your tongue is the strongest muscle in your body.It takes 17 muscles to smile and 43 to frown (keep smiling:)When you’re cold, your muscles contract involuntarily.The only muscle that never tires is our heart.

How do our muscles grow ?!

People go to the gym all the time and do routine workouts that they see online or they learn from somewhere. Some people see changes fast and other it takes more time. Do Theese people really know how their muscles even grow. When I really thought about it I had a few questions. 

The key to building muscle is protein synthesis and cellular repair. Skeletal muscles are made up of long fibers chains containing protein. Bundles of thousands of fibers make up the muscles it's self when and athlete engages in a heavy work out the structure is damaged causing micro tares in the muscle fibers. The body naturally repairs the damage by mending the torn fibers. The result is a muscle that's larger and stronger than before and each additional work out the athlete/person builds bulk, strength and speed.