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December 23, 2025<\/p>\n
4 min read<\/p>\n
Add Us On Google<\/span>Add SciAm<\/span><\/span><\/p>\n 10 Discoveries That Transformed How We Thought about Health in 2025<\/p>\n From advancements in male birth control to the science of supplements, Scientific American highlights some of the most fascinating health and medicine stories of 2025<\/p>\n By Lauren J. Young edited by Andrea Thompson<\/span><\/p>\n Stuart Kinlough\/Science Source<\/p>\n Despite setbacks to science and public health in 2025\u2014from drastic funding cuts to federal governmental departures from rigorous, evidence-based studies\u2014medicine progressed in some exciting areas this year. Here are 10 fascinating discoveries Scientific American reported on in 2025 that changed our understanding of health and the human body and led to treatments of age-old diseases\u2014underscoring how important this research is.<\/p>\n A landmark real-world experiment gave the strongest evidence yet that the shingles vaccine could lower the risk of Alzheimer\u2019s disease and other forms of dementia, finally giving concrete data to support a longtime hunch that viruses may somewhat increase dementia risk. People in Wales who received the shingles shot were 20 percent less likely to develop dementia over the next seven years compared with those who did not get it.<\/p>\n If you’re enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.<\/p>\n An embryo compacting and invading the uterine tissue.<\/p>\n For the very first time, researchers captured incredible real-time, three-dimensional images and videos of a human embryo implanting into artificial uterine tissue. This implantation used a lab matrix that was not designed for in vitro fertilization (IVF), but the study\u2019s authors said the new footage of the reproduction stage could potentially inform better IVF techniques. Implantation failure is one of the main causes of infertility and miscarriages.<\/p>\n Male contraception options are limited to condoms and vasectomies, but a male birth control pill is inching closer to reality. The daily nonhormonal oral contraceptive is the first of its kind to pass early-phase safety trials in humans. The pill works by blocking a vitamin A metabolite from binding to receptors in the testes, ultimately stopping the sperm-making process. The effects are reversible when people stop taking the medication. The pill must undergo larger human trials and efficacy studies before it can be approved, however.<\/p>\n The largest study ever on coffee and the gut microbiome revealed that regular coffee drinkers may have more of a \u201cgood\u201d gut bacterium, Lawsonibacter asaccharolyticus. The little known microbe produces butyrate, a metabolite that aids in proper digestion and nutrient absorption. Scientists hope future investigations can confirm gut bacteria\u2019s role in mediating coffee\u2019s health benefits.<\/p>\n This year scientists peeled back more layers to how new glucagonlike peptide 1 (GLP-1) drugs, such as Ozempic and Wegovy, affect the body and the brain. Researchers gained clues as to why some people taking GLP-1 drugs experience shifts in their favorite foods\u2014suddenly finding meats repulsive or fried foods too heavy. New data also show the vast majority of people who start a GLP-1 drug quit treatment within two years, raising questions about what stopping the medication\u2014which is intended for lifelong use\u2014might do to long-term health. Emerging genetics research is also offering insight into GLP-1 drug \u201cnonresponders\u201d\u2014people who are unable to lose enough weight to see health benefits. And preliminary findings suggest both the gut and the brain may be involved in the drugs causing some people to drink less alcohol\u2014and feel less drunk when they do.<\/p>\n Dairy cows inside the Teaching Dairy Barn at Cornell University in Ithaca, New York.<\/p>\n Jeffery DelViscio\/Scientific American<\/p>\n This year we followed avian influenza\u2019s blazing path through U.S. dairy cattle, poultry and wildlife. A few humans have also gotten sick with the highly pathogenic H5N1 bird flu virus. Scientists have been chasing clues to the virus\u2019s ability to jump from species to species\u2014and evaluating how prepared we are for a potential pandemic. In a three-episode special of Scientific American\u2019s podcast Science Quickly, we took listeners to beaches, barns and biosafety vaccine labs alongside researchers studying one of the highest-profile viruses of the past year.<\/p>\n Thousands of pills, capsules and powders claim to \u201csupport immunity\u201d or \u201creduce inflammation,\u201d but what does the evidence actually support? In Scientific American\u2019sreview of the research on anti-inflammatory supplements, three showed notable effectiveness at tamping down disease-related inflammation: omega-3 fatty acids, curcumin and vitamin D.<\/p>\n Another new analysis suggested that vitamin D might help slow down aging by stopping the loss of telomeres\u2014the end caps of chromosomes, which shorten as humans age. The effect, though, may not result in any real clinical benefit in aging, according to experts. And other studies show that too much vitamin D was also associated with shorter telomeres.<\/p>\n Hypochlorous acid\u2014a centuries-old germ killer that is increasingly found in skin care products\u2014might become the next best disinfectant. Not to be confused with sodium hypochlorite in household bleach, hypochlorous acid is a weak acid that can be safely used on the skin and that destroys an array of harmful microbes by attacking cell walls. Poor shelf stability has prevented it from becoming mainstream, but scientists are tinkering with the chemical to make it last longer.<\/p>\n Hyperemesis gravidarum is a severe form of morning sickness that affects up to 3 percent of pregnant people. It is the primary cause of hospitalization in early pregnancy\u2014and, in some cases, it can be life-threatening. This year Marlena Fejzo won the BioInnovation Institute & Science Translational Medicine Prize for Innovations in Women\u2019s Health for discovering key genes behind the condition. She told Scientific American about her personal journey with hyperemesis gravidarum and new research on future treatments.<\/p>\n The 2025 Nobel Prize in Physiology or Medicine recognized research into the system that stops immune responses from running amok and attacking the body\u2014a process that is key to preventing autoimmune disease. Researchers Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi jointly won the prize for their fundamental discoveries about that system, called peripheral immune tolerance. Central to the process are immune cells called regulatory T cells, which Sakaguchi and his colleague Zoltan Fehervari nicknamed \u201cpeacekeepers\u201d in a 2006 article they wrote for Scientific American. Scientists are now trying to tap these cells for new ways to treat cancer, type 1 diabetes, rheumatoid arthritis and organ or tissue transplant complications.<\/p>\n If you enjoyed this article, I\u2019d like to ask for your support. Scientific American<\/span> has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.<\/p>\n I\u2019ve been a Scientific American<\/span> subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm <\/span>always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.<\/p>\n If you subscribe to Scientific American<\/span>, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.<\/p>\n In return, you get essential news, captivating podcasts, brilliant infographics, can’t-miss newsletters, must-watch videos, challenging games, and the science world’s best writing and reporting. You can even gift someone a subscription.<\/p>\n There has never been a more important time for us to stand up and show why science matters. I hope you\u2019ll support us in that mission.<\/p>\n","protected":false},"excerpt":{"rendered":" December 23, 2025 4 min read Add Us On GoogleAdd SciAm 10 Discoveries That Transformed How We Thought about Health in 2025 From advancements in male birth control to the science of supplements, Scientific American highlights some of the most fascinating health and medicine stories of 2025 By Lauren J. Young edited by Andrea Thompson<\/p>\n","protected":false},"author":1,"featured_media":38805,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[15451,37,21171],"class_list":{"0":"post-38804","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-science","8":"tag-discoveries","9":"tag-health","10":"tag-transformational"},"_links":{"self":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts\/38804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=38804"}],"version-history":[{"count":0,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts\/38804\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/media\/38805"}],"wp:attachment":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=38804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=38804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=38804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}A Vaccine May Prevent Alzheimer\u2019s<\/h2>\n
On supporting science journalism<\/h2>\n
Human Embryo Implantation in 3D<\/h2>\n
Male Birth Control Pill?<\/h2>\n
Coffee in the Gut<\/h2>\n
New GLP-1 Drug Insights<\/h2>\n
Secrets of Bird Flu<\/h2>\n
Supplements That Work<\/h2>\n
Better Than Bleach<\/h2>\n
Severe Morning Sickness Relief<\/h2>\n
Immune \u201cPeacekeeper\u201d Cells Win Nobel<\/h2>\n
It\u2019s Time to Stand Up for Science<\/h2>\n