By Damilola Faustino
There’s a lot going on inside you that keeps you alive without you even realizing it. Some of these things that keep us alive happen every minute. Read on if you want to know some of these things:
It sends nerve impulses
A single neuron can send as many as 1,000 nerve impulses every second or 60,000 per minute. A healthy human brain has about 200 billion neurons. That adds up to almost 12,000,000,000,000,000 signals being sent throughout your brain.
It grows hair
You have somewhere between 100,000 and 150,000 hairs on your head, and each of them grows about a half-inch per month. Collectively, your hair grows 1.1 inches in a minute.
Studies show that the average person blinks 15-20 times every minute and that your brain may use blinking as a way to take a quick nap. Altogether, humans spend about 10 percent of their time awake with their eyes closed.
It inhales and exhales
The normal respiration rate for adults is about 12-20 breaths per minute. That pumps about 11mL of oxygen into your lungs every 60 seconds.
It produces saliva
The salivary glands in your mouth work constantly, producing 1-2 litres of spit every day, Saliva breaks down food to aid in digestion, and it keeps the mouth clean and infection-free.
It keeps you hydrated
Over half of your body is made of water and your body is set on keeping it that way. It constantly monitors how much water you’re losing and therefore how much you need to restore. That’s why you get thirsty.
It keeps your heart beating
Heart rates can vary based on your fitness level, emotions, body size, and even body position, but a normal resting heart rate for adults falls anywhere between 60 and 100 beats per minute. The more fit you are, the lower your heart rate becomes.
It pumps blood
Each heartbeat pumps about 2.4 ounces of blood and sends it throughout your body. If you have a resting heart rate of 80 beats per minute, your heart pumps 1.5 gallons—gallons of blood every 60 seconds.
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