As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.

       In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood thatthe computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.

       In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called "transactive memory (交互记忆)".

       According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.

    Brian was a funny student. He loved watching comedies（喜剧） best and hoped to become a comedy actor one day.

    When he heard about the talent show to be held at this school, Brian decided to take part in. He had never acted on stage before, and he was very excited. But some students laughed at him. “You are not funny but silly，” Ken, one of his classmates, said to his face. “No one will like what you do，” another boy also said to him, loudly.

    Brian couldn't understand why they were so unkind to him. For a moment, he thought about giving up the show. But he remembered how much his friends liked his jokes, and also his teachers said he was very funny. So he decided to prepare for the show.

    Brian did a great job at the talent show. Everyone loved his performance, and he won the first prize! His teachers and friends were proud of him. Even so, Ken told Brian that he was not funny, and that he would never be successful. Brian didn't understand why Ken said so, but he realized that it had nothing to do with him. He confidently continued to work towards his goal.

    As the years went on, Brian met more people like Ken. “You'll do a terrible job，” they said to him. Luckily, most people encouraged him and some helped him to become even funnier. He got a lot of opportunities to perform in movies. He was even invited to appear on television. His fans thanked him because his comedies made them feel good when they were unhappy.

    Now Brian is a big comedy star! He is doing what he loves best. He never feels stressed like those unkind people, and he laughs all day long!

    Everyone should be so lucky as to have a friend like Francia Raisa. On Thursday, singer and actress Selena Gomez, 25, used Instagram to explain why she was “laying low” this summer. She posted a photo of herself in a hospital bed with her friend Francia Raisa holding hands. She said she recently received a kidney transplant from her best friend because of complications（并发症）from lupus（狼疮）, an autoimmune disease, which means it is the result of the immune system attacking normal tissue, including the kidneys, brain, heart and lungs.

    People with lupus may first experience tiredness, joint pain or a little bit of rash（皮疹）on their bodies and can go for a long time before their doctors realize it is more serious. Many people see two or four doctors before the real problem is picked up. According to Dr. Kyriakos Kirou, roughly a third to one-half of people with lupus develop kidney disease, and up to one in five of them will eventually need a transplant, sometimes because they weren't treated with effective drugs to prevent the immune system from attacking the kidneys. Though Gomez said that she was “very well now,” she warned about the dangers of not taking medical diagnoses seriously, like she initially did.

    Her Instagram post also called attention to two major health topics: the need for living organ donators and the fact that Gomez represents three groups more likely to be diagnosed with lupus and lupus-related kidney disease. Nine out of 10 people diagnosed with lupus are women, and most develop the disease between the ages of 15 to 44. And lupus is two to three times more common among women of color, including Hispanic women, according to the Lupus Foundation.

    Raisa is Latina, and Gomez's father is of Mexican origin. While it's not essential that the organ donator and receiver be of the sane ethnicity, people who share a similar background sometimes are better matched, according to data from the United Network for Organ Sharing.

    Most groups of plants and animals are richer in species and more plentiful near the equator. In the ocean, that holds true for cold-blooded predators(掠食者). But warm-blooded predators are more diverse toward the poles and noticeably missing from several warm hot spots. Why?

    John Grady, an ecologist, and his team considered the possibility—warm-blooded animals need a lot to fuel their metabolism(新陈代谢). Perhaps colder waters are just richer in small fish? But they found that at higher, colder places, there isn't actually much more food around. It's more that warm-blooded animals are eating a much bigger share of it than their cold-blooded competitors.

    The real explanation is simple. An animal's speed, swiftness, and intelligence depend on its metabolism, which in turn depends on its temperature. Since birds and mammals can keep heating their bodies in icy conditions, they remain fast and attentive. By contrast, the fish they hunt become slower and duller. At some tipping point of temperature, seals, dolphins, and penguins start out swimming their prey(猎物). They become more likely to come upon targets and outpace the cold-blooded predators of their own.

    In Grady's words, "Warm-bodied predators are favoured where preys are slow, stupid and cold." That's why sharks and other predatory fish dominate near the equator, but colder waters are the kingdom of whales and seals. By keeping food to themselves in the poles, these creatures can then specialize on specific types of prey, which makes them more likely to split into separate species. The killer whales of the North Pacific, for example, include mammal-eating transients and fish-eating, year-round residents.

    But the world is changing. It's likely that the surface of the oceans will warm by 2 to 3℃ within this century. Grady's team estimates that every time the ocean's surface warms by 1℃, populations of sea mammals will fall by 12%, and populations of seals and sea lions will fall by 24%.

    But "predictions are hard," Donna Hauser from the University of Alaska Fairbanks notes. "Polar bears are losers of a warming world, but some populations are still doing well. Some groups of whales have changed the timing of their migrations; others are hunting in deeper, colder waters. These changes might make sea mammals more adaptable to changing climates. Maybe they just need to find the places where fish remain slow, stupid and cold."

Every August, teams with players about 10 years old play baseball across the US, with the aim to become Little League1 . In this year's game, Isaiah Jarvis, a Little League batter (击球手),2 the pitcher (投球手), Kaiden Shelton, who threw a baseball that hit him in the head. The3 scene brought tears to the eyes of the crowd in the stadium.

On August 7^th, Kaiden Shelton, from Texas, 4 Isaiah Jarvis, from Oklahoma, at the plate. With two strikes against Isaiah, Kaiden 5 lost control of his pitch. The ball hit Isaiah in his helmet, sending him to the ground. The field staff immediately 6 him and found him to be OK. He decided to remain in the 7 . Yet Kaiden, the pitcher, appeared to be 8 .

Isaiah called a timeout upon seeing his9 battling emotions. He calmly walked toward Kaiden and gave him a big hug, trying to10 him. "Hey, you're doing just great." Kaiden later shared with NBC News. "These11 words from him really helped me."

A video of the moment was posted online and attracted more than 6.5 million views. Danny Graves, a sports announcer, said Isaiah's12 was the best thing he had ever seen in Little League baseball.

The Texas team won the game 9-4 to 13 to the Little League World Series. And Isaiah was also 14 to the game to celebrate its 75th anniversary. The pair told NBC News they think their newfound 15 will last beyond any tournament.

Smart Water Bottles

Hidrate Spark Smart Water Bottle

This bottle is our top overall pick, because it tracks your water intake, connects to your smartphone using Bluetooth, and records your data in a mobile app. If you forget to drink, this bottle will flash to signal to you. You can also use the app's Find My Bottle feature to track its location. It's available in a range of bright colors and sizes. The only drawback is that there's no self-cleaning feature.

ICEWATER Smart Water Bottle

If you're looking for a smart water bottle while saving some money, we recommend this one. There's a lock feature that stops water from flowing out when it's not in use. This bottle can play music through Bluetooth and comes in both plastic and steel versions. It's not dishwasher safe, however.

LARQ Bottle PureVis

It is perfect for walks, hikes, or sightseeing trips. To use the bottle's self-cleaning function, simply fill it up with water, press the switch, and wait. UV-C LED technology kills off harmful bacteria inside. Besides, the battery can last up to one month on a single charge. Just note that this bottle can't track your water intake.

CrazyCap UV Water Purifier & Bottle

It comes with a lifetime warranty (保修单), so you can be confident that it'll hold up even after the sudden fall. Unfortunately, it can't track your water intake, but the double-walled bottle can keep water cold for up to 24 hours or hot for up to 12 . There are a wide range of bright colors and patterns. The bottle has two self-cleaning modes. It will automatically clean every four hours.