Welcome to the Get Fit Guys quick and dirty tips to get moving and shape up.

My name is Brock Armstrong and I'm the Get Fit Guy.

Sweating is the body's natural way of keeping itself cool, but it's also a great way to, well, deplete some of your body fluid and also some of your minerals. And in this episode,

we're going to talk about whether or not it's worth tracking your sweat. Yesterday morning,

I was riding my bike up a pretty significant hill. Now, to get up that hill, I was peddling

as hard as I could. I'd nearly reached the top of that hill when I felt that

familiar trickle of moisture run down my forehead. Despite the fact that it was only 6 degrees

Celsius or 42 degrees Fahrenheit, well, I was sweating. Our human meat sack bodies work optimally when their internal temperature hovers

around 98.6 degrees Fahrenheit or 37 degrees Celsius. When the body gets warmer than that,

well, the brain doesn't like it. So the hypothalamus, the part of the brain that controls temperature,

sends a message to your body saying, let's cool down. That is when your sweat glands, well, they spring into action,

and we start to perspire. Now, perspiration is made almost completely of water, with smaller amounts of other chemicals in it as well, which

we'll get into later. Perspiration leaves our body through tiny holes in our skin called

pores, and when the sweat meets the air, it begins evaporating, turning from liquid to vapor,

and that in turn cools us down.

Sweat is a great cooling system, but it is also a great way for our body to remove certain elements

from our bloodstream, salt, ammonia, potassium, glucose, lactate, and urea, to name a few.

Now, our sweat also contains biochemical markers, such as metabolites, electrolytes,

and even some heavy metals, which can give doctors and researchers a window into a person's

health, and it can even aid in diagnosing some diseases.

Now, in recent years, scientists have developed sweat sensors

in the form of patches, bandages, and even tattoos that can make these types of measurements

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