(The Epoch Times)—Researchers confirmed that COVID-19 vaccines are linked to changes in the menstrual cycle, according to a study published in March.
Published in the Obstetrics & Gynecology journal on March 1, Oregon Health & Science University researchers found that women who received a COVID-19 shot in the first half of their menstrual cycle are more likely to receive cycle length changes than those who received the vaccine in the second half.
Those researchers used data from 20,000 users of a birth control app that was approved by the U.S. Food and Drug Administration (FDA) to determine what effects the vaccine has on the cycle. Most of the women whose data was analyzed were under the age of 35, while 28 percent were from North America, 33 percent were from Europe, and another 32 percent were from the United Kingdom, they said.
Some were vaccinated and some were not. For those who were vaccinated, 63 percent received an mRNA vaccine, the paper said.
“Individuals vaccinated in the follicular phase experienced an average 1-day longer adjusted cycle length with a first or second dose of COVID-19 vaccine compared with their pre-vaccination average,” the authors of the paper said, referring to women who got a dose of the vaccine during the first half of their cycle.
Those who got the vaccine in the second half or those who were not vaccinated experienced no changes, they found.
The authors added that there is now “a body of evidence demonstrating that the … vaccine is associated with temporary menstrual cycle disturbances at the population level,” adding that “the underlying mechanism for a vaccine-related cycle length disturbance is still under investigation.”
“The leading hypothesis is that these disturbances are due to the immune response that vaccines are designed to produce,” the study said, adding that “the immune and reproductive systems interact closely with one another.” Cytokines, which are small proteins that control the immune system’s activity and are produced “as an early event in the vaccine response,” can impact that process, they added.
Little research has been conducted in the past on how vaccines—whether for COVID-19 or others—could influence the menstrual cycle, the study’s authors further noted.
Responding to the study’s findings, Dr. Alison Edelman, the lead author of the paper with the Oregon university, said that “we do know the immune and reproductive systems interact closely with one another,” adding that with vaccinations, “it is certainly plausible that individuals may see temporary changes in their menstrual cycle due to the immune response.”
Their findings also suggested that there may be changes in the length of the cycle, although they appear to be short-lived. But they added that women who notice significant changes should contact a healthcare provider.
Previously, officials in Norway recommended women who experience heavy and persistent bleeding after vaccination put off any further doses until the cause is investigated or symptoms pass.
Other Research
And earlier in 2022, another set of researchers wrote that for women who received one of the COVID-19 vaccines, around 42 percent of respondents said they experienced increased menstrual bleeding. A majority of those who weren’t menstruating reported breakthrough bleeding after getting the shot, including two-thirds of women who were post-menopausal and slightly less than two-thirds of women who were using hormone treatments.
Most respondents received an mRNA vaccine made by either Moderna or Pfizer. But some also received Novavax, Johnson & Johnson, and AstraZeneca shots, according to the paper.
“We focused our analysis on those who regularly menstruate and those who do not currently menstruate but have in the past. The latter group included postmenopausal individuals and those on hormonal therapies that suppress menstruation, for whom bleeding is especially surprising,” Kathryn Clancy, a professor of anthropology at the University of Illinois Urbana-Champaign, said in a statement about the study’s findings at the time.
And it is not the first time that the same Oregon Health & Science University researchers found COVID-19 vaccines are associated with a change in the cycle. In 2022, they found that the change was pegged at under one day, and no change in menses length was detected.
While the study did not find vaccination associated with changes in menses length, “questions remain about other possible changes in menstrual cycles, such as menstrual symptoms, unscheduled bleeding, and changes in the quality and quantity of menstrual bleeding,” they wrote.
Pfizer Official’s Concerns
About a year ago, a Pfizer employee was seen in an undercover video telling a reporter with Project Veritas that he was concerned about the mRNA shot’s possible side-effects relating to menstrual cycles.
“There is something irregular about the menstrual cycles. So people will have to investigate that down the line because that is a little concerning,” the Pfizer official said in the video, adding that it “shouldn’t be interfering” with the cycles.
“I hope we don’t discover something really bad down the line,” he later added.
Zachary Stieber contributed to this report.
Two Storms, One Harvest
Every food crisis in living memory has been a one-shock event. The 2008 price spike was a commodity bubble. The 2020 shortages were a logistics failure. The 2022 grain scare was a war on one exporter’s ports. Each time, the system bent, adjusted, and recovered, and each time the experts assured us afterward that global markets are simply too big and too diversified to fail.
What nobody in Washington seems eager to discuss is that 2026 is shaping up to be something the modern food system has never actually faced. Two independent shocks, one climatic and one geopolitical, are converging on the same harvest cycle at the same time. Not sequentially. Simultaneously.
Start with the weather. The Pacific Ocean is currently building toward what forecasters now openly call a record event. NOAA’s Climate Prediction Center puts the odds of at least a strong El Niño near 88 percent, with roughly two in three odds it reaches “very strong” status, the tier reserved for perhaps three or four events in the entire satellite era. Every major global model now projects a median peak in Super El Niño territory, and most of them project it exceeding the 2015-16 event, which until now held the modern record. Sea surface anomalies were already brushing the super threshold in mid-July, months before these events normally peak. The atmosphere has already shifted into El Niño mode, and the event is forecast to crest in late fall and early winter.
This is not about “climate change.” It’s about the standard cycles of weather, and the cycle we’re currently in is one that has likely devastated societies in the past. We’re better prepared as a society today, but not all Americans are equally prepared.
Serious households have started doing the quiet math on their own. Grocery bills tell part of the story, and the forecast maps tell the rest, which is why long-term food storage has moved from fringe hobby to mainstream line item in the family budget, with established suppliers like Heaven’s Harvest seeing demand from people who five years ago would have rolled their eyes at the idea. That instinct is not paranoia. It is pattern recognition, and the pattern is worth walking through carefully.
Editor’s Note: Heaven’s Harvest IS a sponsor, but the warnings of this article are real and would be written even if we didn’t have a survival food sponsor. With that said, those who take advantage of what they offer can use promo code “Patriot” for 15% off.
The Fertilizer Clock Is Already Running
While the Pacific warms, the second shock has been unfolding in the Strait of Hormuz. The conflict with Iran turned the world’s most important energy chokepoint into a contested waterway, and the consequences reach far beyond the gas pump. Roughly a third of global fertilizer trade moves through Hormuz, and the disruption sent urea prices up 86 percent year over year by March, with a 53 percent jump in a single month.
The World Bank projects energy prices rising about 24 percent in 2026 and fertilizer about 31 percent. By its own accounting, fertilizer prices ran 35 percent higher in the first five months of this year than the same period last year.
Here is the mechanism the nightly news will not explain. Fertilizer is not a grocery item. It is a time-delayed input. The nitrogen a farmer in Iowa or Punjab could not afford to apply this spring does not show up as a problem this spring. It shows up as a thinner harvest six to twelve months later.
The World Bank’s own food security brief concedes that the effects of reduced applications earlier this season “are likely to become visible only later in harvest outcomes.” Translate that from institutional language into plain English and it means this. The damage is already done, it is already in the ground, and we are simply waiting for it to arrive on the shelf.
Now check the calendar. Six to twelve months from the spring planting season lands us squarely in late 2026 and early 2027. Which is precisely when the strongest El Niño in the instrumental record is forecast to peak, bringing its signature droughts to Southeast Asia, Australia, southern Africa, northern Brazil, and South Asia, the very regions that grow the world’s rice, sugar, and oilseeds.
The World Bank warns openly that a strong El Niño “could disrupt multiple crop belts simultaneously” on top of the conflict-driven input costs. Their baseline projection assumes the Middle East disruptions ease by autumn. What in the last two years of Middle East history suggests that assumption is safe?
The System Has No Slack Left
The comfortable answer is that global markets always adjust. But adjustment requires slack, and the slack is gone. Global cereal production is expected to decline from last year’s records even before El Niño does its work. The UN World Food Programme, hardly a den of right-wing preppers, is calling this the most significant disruption to its supply chains since Covid and the invasion of Ukraine, and its supply chain director put the stakes bluntly.
Today’s supply chain challenges are tomorrow’s hunger crisis.
There is also a political dimension that markets cannot price. When food gets scarce, governments do not behave like economists. They behave like politicians. Export bans, hoarding mandates, and panic buying at the national level turned the modest rice shortfall of 2008 into a global crisis, and analysts are already warning that import-dependent nations are the first dominoes.
The 2015-16 Super El Niño, a far weaker event than what is now forecast, threw tens of millions into food stress across Africa and Asia. This one is projected to be stronger, and it arrives with fertilizer already rationed by price and shipping lanes already contested by missiles.
What Joseph Knew
Scripture does not treat preparation for lean years as faithlessness. It treats it as wisdom delivered in advance to those willing to act on it.
Behold, there come seven years of great plenty throughout all the land of Egypt: And there shall arise after them seven years of famine; and all the plenty shall be forgotten in the land of Egypt.
Joseph did not respond to that warning with a hashtag or a committee. He stored grain during the years of abundance, and when the famine came, Egypt stood while its neighbors begged. The lesson is not that famine is certain. It is that the time to prepare is precisely when preparation still looks optional.
Nobody who filled a pantry in a year of plenty has ever regretted it, and nobody standing in an empty aisle has ever been glad he waited for certainty.
None of this calls for panic, and panic is the enemy of sound judgment anyway. It calls for the same unglamorous prudence our grandparents considered ordinary. Keep some cash margin, know your local growers, and put real food in deep storage while it is cheap and available, because the entire arc of this story is that cheap and available is a closing window.
Families looking for a straightforward place to start can visit Heaven’s Harvest and use promo code Patriot for 15 percent off long-term storable food. The forecasts may yet soften, the strait may yet reopen, and we should pray they do. But hope is a fine thing to hold and a foolish thing to eat.
