Now we come to another great benefit of green tea: anti-aging and improving memory.
Green tea has gained a magical glow in the turn of the century. Its anti aging function is one color of its rays that shine on the face of humanity.
And the buzz on the internet is increasing its volume. Is it true that green tea can not only contribute to cancer prevention, blood pressure regulating ,immune system improving, but also boost memory?
Back a few years ago, the glorious claims had no solid scientific evidences, only some hopeful clues. However, recent research and studies that have been conducted in vitro and in mouse models shout out their support:
Green tea does help preventing cognitive loss if the loss is caused by aging and age related dementia. Why? The antioxidants in green tea have properties that can do us this great favor.
While further studies on humans have been on their way to collect the evidence, millions of people have already been on their way to enjoy the benefits. Light always travels faster than trains, doesn't it? So does the human logic to experiments.
If the antioxidants in green tea can do great good to mice without any side effects, why not humans? It's an herb, not medicine, which may cause big problems if we are not careful. Some doctors have already given people advice to drink this magical tea. A few minutes a day, a few years longer your life.
The positive findings of how the antioxidants in green tea function are certainly very encouraging, and very likely proven to be effective and side effect free in treating humans on age related memory loss, even playing a important role in preventing memory loss when we're aging, offering great benefit for alleviating symptoms of dementia, such as Alzheimer's and Parkinson's disease.
First, we need to understand how we age. Keep in mind that the age of our body doesn't necessarily mean the age of our years. Our body can be younger or older than we really are. This will shed a light for our understanding of the signs of dementia, too.
There's something called free radicals that are generated when our body uses oxygen during the metabolic processes. Free radicals won't set us free, and they don't want to stay free either.
They are molecules that have unpaired electrons. The second a free radical is born, it tries to loose its freedom by bonding to other molecules, thus causing the bond in the second molecule to break in order to create an electron pair with it.
This is series of events that happen inside our body when we are busy with our life. It is a chain reaction that can eventually lead to cell damage, which in turn makes us a little bit older. Just a very tiny, tiny bit older.
A tiny bit plus a tiny bit, we're getting older and older, unnoticed, until one day when we look back, we aren't the one who was young, energetic and with great memory anymore.
Well, let's not go there; come back to the topic. Which is that? Oh, anti aging green tea.
Yes, we do have natural defenses against this freedom-hater free radicals. The antioxidants in our body can fight them for us.
No, actually, they are not fighting, they are peace lovers, giving peace offerings whenever they meet a free radical that is seek pairing, donating an electron to it, meeting its need, and thus ending its freedom and the chain reaction. The result? Anti aging.
Isn't it great?
It's easy to understand, then, that the more peace-loving antioxidants we have inside of us to do the anti aging job, the less impact the free radicals have to our body.
Now let's come to our brain, where the memory is located. Do you know which part of our body has the most active oxygen consuming activities?
Yes, it's THE brain, which means it's the place where a great amount of free radicals are generated, and generated, and generated. When do we actually stop consuming oxygen and using brain? Even when you say "No, I'm not using my brain", you are still using it to direct your language function to say no. The same happens when we are sleeping. Part of our brain is always doing something.
It's our brain that has the highest metabolic rate. That's why we are humans, right?
One fact: higher metabolic rate means a higher rate of pair-seeking free radicals. Our brain is particularly susceptible to free radical damages due to this very reason.
Normally in our body, we have two of the most common forms of antioxidants, vitamins E and C, coming from food we intake.
Green tea has more than the two types. It has been proven to have many additional antioxidants that are good to our body by stopping cell degeneration.
Memory loss is part of aging. When the loss arrives to a certain point, it becomes one of the dementia symptoms. There are two main components in green tea called polyphenols and flavonoids that are proven to be able to improve memory, a function that is getting worse and worse when we age.
One of the green tea's polyphenols is called EGCG. It's very beneficial in stopping neuronal cell degeneration, preventing free radicals from causing damage in the brain. Again, anti aging.
1. Neuronal loss is prevalent in elderly people due to the free radicals building-up over time.
About 1.5% of the 65 year-old population suffers from certain types of dementia. And the rate doubles every 4 years. Among the 80 year-olds', the rate is 30%.
2. Alzheimer's disease is a progressive brain disorder, one of the most common types of dementia. It affects about 4.5 million Americans' memory, ability to reason, communication, judgments,learning ,and carrying out daily activities.
The Alzheimer's disease rate is much lower in Asia, where green tea is the most popular drink.
3. Parkinson's disease, a neurodegenerative disease, occurs when neurons in the substantia nigra of the brain die or become impaired(according to parkinson.org.). When about 80% of these cells are damaged, its symptoms appear: slow movements, trembling, and difficulty balancing.
Green tea can help alleviate some of the symptoms of Parkinson's. It can inhibit a neurotoxin called MPTP to help the brain produce something called dopamine, which is important in smooth coordination function.
Other benefits of green tea: