As many as 50 million people worldwide may live with Alzheimer's and similar forms of dementia, and while we still don't understand a lot about it, scientists may be one step closer to an effective treatment. Hosted by: Hank Green SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Alex Schuerch, Alex Hackman, Andrew Finley Brenan, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: academic.oup.com/brain/advance-article/doi/10.1093/brain/awy354/5298257 www.alz.co.uk/research/statistics www.nia.nih.gov/health/alzheimers-disease-fact-sheet www.nia.nih.gov/health/what-happens-brain-alzheimers-disease www.eurekalert.org/emb_releases/2019-01/uab-imb011519.php www.nature.com/articles/hdy201054 www.nature.com/scitable/definition/chromatin-182