Vitamin C plays an important role in keeping us healthy.
Most mammals produce it in their livers, so they never suffer from alack of it.
Curiously, however, some mammals, such as humans and apes,cannot do so.
What happens when you lack this important vitamin?
You might see black-and-blue marks on your skin.
your teeth could suffer, too: the pink area around them might become soft and bleed easily.
These are just a couple of good reasons to eat plenty of fresh fruit.
drugの定義
The word “drug” means anything that, even in small amounts, produces changes in the body, the mind, or both.
This definition, however, does not clearly separate drugs from what we usually think of as food.
The difference between a drug and a poison is also unclear.
All drugs become poisons in large amounts, and many poisons are useful drugs in carefully controlled amounts.
Is alcohol, for instance, a food, a drug, or a poison?
It can be any of the three, depending on how we use it.
お茶の種類
Green tea has a long history in Japan and strong ties with Japanese culture.
Because of this, one might think that green tea comes from a plant unique to Japan.
However, all tea, no matter what its color or taste, comes from the same plant.
Then what causes the differences in taste and color?
They are, in fact, the result of different ways of growing the tea and treating it after it is picked.
オオカミの子育て
Wolves have an interesting way of raising their young.
When a female wolf is ready to give birth, she digs a hole.
Within this hole, she has her babies.
While she is taking care of these babies, other wolves bring her food.
After they get a little older, the mother can leave them while she goes off to hunt with other members of the group.
Then, instead of the mother, another female will stay behind to guard the young wolves.
ジェスチャーの違い
Physical gestures may have different meanings in different cultures, and misunder standing these signals can sometimes be embarrassing.
I once had an experience which I hove never forgotten.
Some years ago, I took a small group of foreign students to Kyoto.
I counted them with the index finger, which is common in Japan.
But one of them became quiet and looked puzzled.
When I asked him what was the matter, he replied, “In my country, we count people with our eyes. We use our fingers to count pigs.”
