Sleep is crucial for good health. Getting deep sleep helps us gain energy, lower the risk of heart d
[562호]
Because silver is durable and has the beauty of pureness, many people use and wear silver items and
[561호]
Mandarins contain a special substance called beta-carotene. This substance is a plant pigment often
[560호]
The sensitive plant is a type of tropical plant. It bears ball-shaped clusters of pink flowers betwe
[559호]
We often fail to catch flies at one go whenever they buzz around us. Because flies have 270-degree v
[558호]
When horses get hot, they can reduce their body heat by sweating. Interestingly, not only does sweat
[557호]
Pigs often feel overheated because their fat insulates their bodies. What’s worse, they can hardly
[556호]
Many people eat almonds because they are high in unsaturated fat, vitamin E, iron, and calcium. Ther
[555호]
We often feel sleepy when we ride a car. Some people think this drowsiness may be due to the lack of
[554호]
Because fish do not have eyelids, it is difficult for people to tell whether they are asleep. Intere
[553호]
[이전10개] 21 22 23 24 25 26 27 28 29 30 [다음10개]
