- [Voiceover] Unfortunately, just like any other system,
the muscular system can have various diseases and disorders.
One to look at is Muscular Dystrophy.
In the case of Muscular Dystrophy,
it's hereditary.
It's passed on from parent to child.
The problem is
in the particular sequence, you're missing a gene
that produces a protein.
Missing this one protein
of the thousands, just this one missing one,
will cause muscular dystrophy.
Tetanus.
Kind of briefly mentioned this one already.
But tetanus is going to be a bacterial infection.
And this bacterial infection actually
causes your muscles to freeze.
It causes them to lock up,
prevents you from moving them.
And can become quite painful if they stay
locked up for long periods of time.
Muscle cramps.
I'm willing to bet most of you have
had a muscle cramp at some point.
It's pretty much an uncontrolled flex of muscle.
The muscle itself is tightening up
and you can not release it.
These cramps last for
minutes,
all the way up through hours and hours.
The most common cause of cramps or muscle cramps
is either dehydration,
you don't have enough water,
or ion imbalance,
you don't have enough electrolytes.
Or the proper amount of electrolytes.
So cramps.
They're most commonly gonna occur after working out,
and in the morning after you get up from bed.
Well if questions of why.
Well when you're sleeping in bed,
I'm pretty sure you're not drinking water all night.
So therefore by the time you wake in the morning
your body might be a little bit dehydrated.
Well after working out,
you're sweating a lot.
By sweating a lot, you're losing fluid
and losing ions.
Losing those electrolytes.
Which means the layers of electrolytes
in your system could be low.
A pulled muscle.
Sounds pretty basic.
But what a pulled muscle actually is
is taking the muscle fibers
and stretching them beyond their limits.
Sometimes by stretching the muscle too far
you can actually damage the muscle.
You can tear and rip all these fibers.
So pulled muscles.
You can do it simply by stretching too much.
You can do it by exercising
and all of a sudden just turn the wrong way or something.
There really is no one way
to get a pulled muscle.
As long as the muscle was stretched too far,
it can result in a pulled muscle.
Fasciitis.
Fasciitis is a kind of an interesting problem
because an inflammation of the connective tissue
around the muscle.
So it's meant to help hold the muscle together
to give a nice protective outer casing.
But now if that outside layering becomes inflamed
it's fasciitis.