When on the go or travelling, a Disposable(一次性) Toothbrush might be just the product for you. Typically, a Disposable Toothbrush is made out of a plastic material, with toothpaste already on the brush head.Just add water while you are using it. In some new Disposable Toothbrush models, the toothpaste comes automatically(自动地) as you squeeze(挤) the handle of the toothbrush.

Colgate has upped the competition in the Disposable Toothbrush market by creating a Disposable Toothbrush that you can use at your desk at work, in your car, or after eating at a restaurant. This toothbrush is called the Colgate Wisp, and is about the size of an index finger. The toothbrush can get to those hard to reach places just like a regular toothbrush. No water is necessary when using this toothbrush, making it very useful and convenient. A pack of four of the Colgate Wisp’s run about $2.99. If you are one of those people that like to brush your teeth throughout the day but hate the hassle of carrying a toothbrush and toothpaste around, this is perfect!

Gadgets.boingboing.net is a website that allows different people to share their thoughts and experiences on a certain product. The website gives a general review on the Colgate Wisp, and following the review, people are able to share their first－hand feelings with readers. This is helpful if you are interested in purchasing the Wisp.Visit their website here: gadgets.boingboing.net.

However, people throw them away after using them only once. It is a kind of waste and is very bad for the environment. If you travel to Beijing, remember to bring your own things. Starting from June, some hotels in Beijing will no longer provide guests with these disposables.

Old Wives’ Tales are those “helpful” things that your grandparents say that are probably not true. They are things like, “If you eat carrots, you’ll see well in the dark”, or “If you eat cheese at night, you’ll have bad dreams”. But are they nonsense（胡说） or is there sometimes a little bit of truth in them? We decided to find out more.

Let’s start with a famous one, “An apple a day keeps the doctor away.” Well, of course everyone knows that fruit is important for health. But can one apple really make a difference? A medical study from 2013 says “yes”. It found that if people over 50 eat an apple a day, their chances of heart problems are much smaller than people who don’t.

What about “Gain a child, lose a tooth”? They say that when a woman has a child, a tooth will fall out. Researchers studied more than 2,600 women between the ages of 18 and 64 with one or more children and guess what? They found they had more problems with their teeth than women with no children, although they couldn’t say exactly why.

My great uncle was a big believer that “fish is brain food”. It looks like he might be right. Fish have a lot of omega-3 and omega-6 fats in their oil. Some scientists studied 120 primary school children, and they discovered that the children who ate omega-3 and omega-6 made big improvements in their schoolwork. If you eat fish oil, it will help to prevent heart problems, too. It seems like eating fish is a good idea.

Finally, what about those carrots? Can they really help your night vision? I’ve eaten them all my life, but I still walk into things when I get up in the night. Unluckily, I can’t find anything to show if this is right or wrong. I’ll keep looking and I’ll let you know as soon as I find out.

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