Quick fact. Ready? Our heart is able to pump completely on its own through ways of self depolarization. Not only this, but it's auto-rhythmic, in which it regulates its own pace.
Quick fact. Ready? Our arteries are made up of three main layers. The innermost layer contains endothelial cells, The middle layer is smooth muscle, While the outermost layer is mainly elastic connective tissue. And even that is a simplified version of it. Isn't the human body so complex?
Quick fact. Ready? When we breathe in cold weather, we are able to see our breath. Why? Because the air moving from the warmth of our lungs to the colder atmosphere makes its particles condense, thus making it visible to the human eye.
Quick fact. Ready? Brown fat actually helps you burn fat! Unlike the well known white adipose tissue, brown adipose is actually metabolically active, helping to shuttle and use fats as fuel as supposed to being stored in the body. Weird, huh.
Quick fact. Ready? We each have two adrenal glands, one positioned roughly on top of each kidney. They both perform the same function, however one is shaped more like a triangle, while the other is shaped more like a crescent.
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