This video discusses the vaccine for hepatitis B.

This video explains why a honeybee dies after stinging someone.

This video explains why we shouldn't eat fruit that has gone bad.

This video explains why picking our noses not only doesn't look nice, but can also be harmful to our health.

This video explains the different circumstances under which hair might fall out.

This video explains how giraffes evolved to have the long necks they have today.

The giraffe's long neck serves many interesting functions.

This video explains why fresh vegetables are important to the body's overall health.

This video explains why a fish's body is covered in mucus.

Time is an intangible thing that is difficult to measure. This little video talks about the different tools used to measure time in history.

Time is an intangible thing that is difficult to measure. This little video talks about the different tools used to measure time in history.

How do two people break up on good terms?

What's the best way to get past the hurt and move on with your life after a breakup?

This video talks about how to build self-confidence. Don't mind what other people think of you and just be yourself.

This video talks about how to build self-confidence. Don't mind what other people think of you and just be yourself.

Since ancient times, hairy crab has always been the top delicacy in China, especially in the southeast region. Many people love eating hairy crab, but not everyone knows how to eat it correctly. Find out what the best way is to eat this delicious delicacy.

The Chinese language has changed a lot over history. The speaker in the video talks about how he is unable to comprehend the Chinese from the past and present.

The speaker continues to talk about the changes in language and how to embrace them.

Rather than inventing a new language, the speaker wants to be the protector of language, mingling together the new and the old.

This speaker talks about how today's world is not lacking people who cannot speak up, but rather people who are brave enough to seek consciousness when speaking.

The speaker goes on to talk about how people often blindly post comments online without even really knowing the details.

The speaker talks about the second type of shame, which is "speaking daggers to somebody."

The speaker continues to talk about the true "brave and outspoken."

The speaker talks about how she makes money by speaking.