Even though depression and anxiety are different types of disorders, they tend to go together. But why can it happen? Resources: National Suicide Prevention Lifeline: 1-800-273-8255 Crisis Text Line: https://www.crisistextline.org/ International Resources: https://yourlifecounts.org/find-help/ Hosted by: Brit Garner ---------- Support SciShow by becoming a patron on Patreon: / scishow SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at https://www.scishowtangents.org ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Greg, 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: / scishow Twitter: / scishow Tumblr: / scishow Instagram: / thescishow ---------- Sources: https://www.nature.com/articles/srep4... https://tourette.ca/wp-content/upload... https://images.pearsonclinical.com/im... https://www.psychologytoday.com/us/bl... https://www.health.harvard.edu/newsle... https://www.nami.org/Blogs/NAMI-Blog/... https://www.health.harvard.edu/stayin... https://medworksmedia.com/product/can... https://www.ncbi.nlm.nih.gov/pmc/arti... http://www.psychiatrictimes.com/anxie... https://www.sciencedirect.com/science... https://www.tandfonline.com/doi/abs/1... https://pdfs.semanticscholar.org/3ec5... http://psycnet.apa.org/record/1990-98... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.sciencedirect.com/science... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.ncbi.nlm.nih.gov/pubmed/9... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.researchgate.net/profile/... https://www.frontiersin.org/articles/... https://europepmc.org/abstract/med/21... http://psycnet.apa.org/record/1998-10... https://www.sciencedirect.com/science... serotonin receptors: https://www.cell.com/neuron/fulltext/... norepinephrine: https://onlinelibrary.wiley.com/doi/f... https://www.ingentaconnect.com/conten... http://psycnet.apa.org/record/1998-10... Image Sources: https://www.istockphoto.com/photo/how... https://www.istockphoto.com/photo/bus... https://www.istockphoto.com/photo/tho... https://en.wikipedia.org/wiki/Seroton... https://commons.wikimedia.org/wiki/Fi... https://www.istockphoto.com/vector/br...