Most neurons can't divide to form new cells, so there's no way to replace them if they die. 大多数神经细胞无法分裂产生新的细胞，因此一旦神经细胞死亡就没有其它细胞可以替代。 But living neurons continue to grow a...
When you were born, almost all of the one trillion neurons, or nerve cells, in your brain had already formed. 当你出生时，大脑中的一万亿个神经元（神经细胞）几乎已经全部形成。 But those neurons still had a lot of growin...
They understood basic grammatical constructions, such as the difference between me eat apple and apple eat me. 它们也能明白基本的语法结构，比如我吃苹果和苹果吃我的区别。 They invented their own words, such as water bird f...
Chattering Chimps 喋喋不休的黑猩猩！ We talk to our house pets all the time, but wouldnt it be great if your cat could answer you in English? 我们经常跟家里的宠物聊天。如果你的猫能用英语回应，那岂不是很棒？ We...
How is this possible, you ask? 你也许好奇，这怎么可能？ The best explanation is known as the privileged window hypothesis. 最好解释就是幸运之窗假说。 The gist is that when we rely on feelings to make a prediction, we're reall...
Its impossible to know the future. We can guess, but no one has actual knowledge of whats going to happen down the road. 未来难以预测。我们可以猜测，但是没人真正知道将来会发生什么。 But if youre someone who trusts her fe...
And once these sweat-loving bacteria really start chowing down, they make the smell of the sweat on these parts of the body even stronger. 当爱好这种汗渍的细菌附着到皮肤上时，这些部位的汗味会逐渐加重。 Thats why the lon...
Our bodies have two main kinds of sweat glands. 人体的汗腺大致分为两类。 The sweat glands that are distributed over most of the body produce an innocent, clear sweat that's more than ninety-nine percent water. 其中一种汗腺几乎分布...
The water moves to the starch in the crust, which begins much drier than the rest of the loaf. 水分逐渐向面包皮上的淀粉转移，面包皮变得比其他地方更加干燥。 Of course, if the bread is left uncovered, the water escapes to...
How To Keep Bread From Going Stale 怎样防止面包变质？ Generally speaking, refrigeration helps to keep food fresh. Fruits, vegetables, and dairy products all last longer if kept cool. 一般说来，冷藏可以让食品保持新鲜。冷藏的...
When the lamin A protein is normally made, a chemical piece called farnesyl is lopped off. 当核纤层蛋白A的编码正常时，一种名叫法呢基的化学物质会从细胞核内脱落。 In the progeria cell, the farnesyl stays attached. The...
Progeria was first described in the nineteenth century. The mysterious disease is often thought of as premature aging. 儿童早衰症的最早记载是在19世纪。这种神秘的疾病通常被认为是过早衰老。 Children with progeria are no...
And teens who smoked were five times less likely to rate high on happiness charts compared to kids who dont smoke. Same goes for diet and physical activity. The more fruits and veggies kids ate, and the more hours they spent playing sports, the happi...
Teenagers are often a difficult bunch. With all those hormones flooding their bodies, they can be moody, unpredictable, and prone to making dubious choices. But however turbulent their teenage years, kids can still be generally happy, depending on th...
The researchers looked at eighty 8 to 12 year old overweight or obese children and their parents. The parent child pairs participated in a parent only or a parent plus child weight treatment program for five months. 研究人员调查了80名8~12岁体...
