Jio Jeong's List: human body

• Actually, plain sugar doesn’t stay in your mouth long enough to feed the bacteria that inhabit the film on your teeth
• . But foods such as dried fruits and many candies, which have sticky particles that slowly dissolve, will cause the bacteria to grow.
• Your teeth are coated with a thin layer of material called plaque. This material is formed by bacteria in the mouth, which glue themselves to your teeth to avoid being swallowed.
• bacteria eat sugar. When they eat the sugar, they produce acids. The bacteria do not eat your teeth, but the acids do dissolve tooth material if they accumulate enough to raise the acidity levels enough. It takes the bacteria about 20 seconds to convert sugar into acid, and the acid stays trapped in the plaque next to the teeth for about a half hour.
• It is not the amount of sugar that is important, but how often you eat sugar

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• Is There Really a Chemistry of Love?
• chemistry does play an important role in how a relationship progresses
• communication
• there's attraction. Nonverbal communication plays a big part in initial attraction and some of this communication may involve pheromones,

  a form of chemical communication
• lust is characterized by high levels of testosterone
• sweaty palms and pounding heart of infatuation are caused by higher than normal levels of norepinepherine
• being in love is due to a rush of phenylethylamine and dopamin

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• What Are the Elements in the Human Body?
• Most of the human body is made up of water, H₂O, with cells consisting of 65-90% water by weight
• Carbon, the basic unit for organic molecules, comes in second
• oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus

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• Researchs usually consider three stages in love: lust, attraction and attachment.
• When you fall in love you may have many physical symptoms: lose of appetite, can't sleep, can't concentrate, palms sweat, butterflies in stomach... This is due to surging brain chemicals called monoamines:
• - DOPAMINE: it's commonly associated with the pleasure system of the brain, providing feelings of enjoyment and reinforcement to motivate us to do certain activities. It's released by naturally-rewarding experiences, such as sex or food. Some research studies show that when female rodents were injected dopamine in the presence of a male rodent, the female will pick him out of a crowd later.

• - PHENYLETHYLAMINE: It's a natural amphetamine like the known drug and can cause the same stimulation effects. It contributes to that on-top-of-the-world feeling that attraction can bring, and gives you the energy to stay up day and night with a new love.

   
• - NOREPINEPHRINE is another neurotransmitter which induces euphoria in your brain, exciting the body by giving it a booster dose of natural adrenaline. This causes the heart to beat faster and blood pressure to rise. That's why you can experience a pounding heart or sweaty palms when you see someone you're attracted to.
• 3) Attachment - Staying together
    There is a sense of calm and stability that we feel with a long-term partner, a sort of bond that keeps couples together. This kind of love is driven these hormones:

• - OXYTOCIN: it's sometimes known as "the cuddle chemical." It's the hormone best known for its role in inducing labor by stimulating contractions. But recently it has been observed that it may influence our ability to bond with others, as both genders release this hormone when touching and cuddling, with the oxytocin level peaking during orgasm.

   

  - VASOPRESSIN: also called as "the monogamy chemical". Researchers have found that suppression of vasopressin can cause males to abandon their love nest and seek new mates.

   

  - ENDORPHINS: they are biochemical compounds that enhance our immune system, block the lesion of blood vessel, have anti-aging, anti-stress and pain-relieving effect, and also help to improve your memory.

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