Ew, cavities! I worked hard for my first one. Forgot to floss for a few months (I did brush), ate a TON of sugar and didn't see the dentist for 1 year.

What did I learn? That toothbrushes don't clean between teeth (which is why we need to use floss), so hungry bacteria already hanging out in my mouth started feasting. One consequence of bacteria feasting is acid. This acid slowly dissolves the tooth. If caught early enough, it only dissolves the outer part of the tooth, called the enamel. If you don't see the dentist for years, though, the acid might get all the way to the inside of the tooth, the dentin -- which means Big Trouble: fillings, toothaches, crowns or even root canals! Unless you really want that gold tooth

So what they say is true: floss every day, don't eat candy instead of meals, and see the dentist every 6 months -- Or you will have a reason to be afraid!

 

Today I learned that a lifesize human skeleton replica will cost you around 200 bucks (or, save a few bones with the 33 inch version by Anatomy Warehouse). Bones are expensive! Those grave robbers knew what they were doing.

While we're alive, bones and muscles work together. The bones support the muscles, and the muscles make the bones move. Without bones, we would just be a blob, stuck in one place. Even snakes have skeletons that let them bite & slither on the ground. Luckily, we have a lot of bones to help us do fun things & run from scary things. There are 206 bones in the adult human body, but we're born with more --270 -- so we can squeeze out of our mom's uterus. As we grow up, some bones fuse together to give us a stronger skeleton. 

Some important bones include the pelvis (hip bone), knee bones (patella & leg bones), skull and humorous. Your skull is especially important, because it protects your brain! Your spinal column supports the bones on the upper half of your body, as well as your pelvis (ribs, shoulder bones and skull); if it is injured or you don't eat enough calcium, your neck and shoulders may develop a permanent slouch.

Now sit up straight

Now that's an adrenaline rush!

If something is scary or stressful, your hypothalamus sends signals to pituitary and adrenal glands, which let out hormones (a fancy word for messengers) to tell the rest of the body what to do.

Adrenal glands let out a hormone called epinephrin into the blood, which gets your body ready to fight bad guys or high-tail it outa there!

Muscles feel tense & ready to karate chop your enemies!

Lungs breathe fast & shallow to get extra oxygen to your muscles

Digestive & Urinary systems slow down -- your stomach doesn't want to eat, your bladder might have an accident, and your rectum (hope it's empty) contracts!

Salivary Glands make less saliva, leads to dry mouth & you get less chatty

Sweat Glands make your hands sweaty

Pupils get bigger

Liver lets sugar into the blood for muscle power

Heartbeat & blood pressure turn up!

Example: "Acrobatics -- Now that's an adrenalin rush!"

Celebrate your appreciation for the hard-working kidney with our new kidney designs via Nuvango! Kidneys really deserve a day off (but please don't offer them one!). They clean 120-150 quarts of blood daily, maintain blood pressure, balance electrolytes, make pee and even a few hormones. Thanks, kidneys!