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4:32 rap video about DNA

3:17 video Mitosis rap by Mr. Wolkenfeld

4 min Rap Video on Osmosis with embedded videos showing experiments.

Sure, we know insufficient serotonin levels get a bad rap when it comes to depression, but that's like blaming one person in a full-scale riot. Depression isn't caused by only one factor. In fact, study co-author Elyse Aurbach says we're probably not getting to the core of why people are depressed because "the brain is immensely complex." In this study, the research team conducted eight experiments (four on animal brains, four on brains of the deceased human kind) of varying sample sizes - from 20 to 90 brains in each - and found that the brains of deceased humans who'd been depressed had increased levels of hippocampal FGF9 and that live animals with increased FGF9 levels demonstrated depressive, anxious behavior. "This is not just a correlation," study leader Huda Akil of the University of Michigan says. Less really may be more, at least when it comes to FGF9.

It's peak cold and flu season, and mucus is making many of our lives miserable. But despite being a little icky, phlegm gets a bad rap. This germ-fighting goo contains cells and chemical compounds that help us power through a cold. You can also think of mucus as a traffic light for your health - what turns up in our used tissues can be a useful clue about the inner workings of our immune systems.

4 min rap song about central dogma

A musical description of the non-specific (innate) immune response.

3:17 video with music

You've always been told sugar is bad for you, but how bad is it really? Find out in this science music video - researched, written, sung, directed, shot, and edited by 8th graders from The Nueva School in California. This song is a science parody of "Sunday Candy" by Donnie Trumpet & The Social Experiment, featuring Chance the Rapper and Jamila Woods.