Health & Medicine

1. Common supplement could help fight psoriasis, scientists discover

   Scientists have discovered that pantethine, a readily available vitamin B5 derivative, can calm overactive immune cells and may help fight psoriasis. The supplement prevented psoriasis in mice and showed promising results in a small human trial, revealing an unexpected connection between cholesterol and autoimmune inflammation.

2. Common osteoporosis drugs linked to 24% lower dementia risk in major study

   A massive study of more than 120,000 older adults suggests that common osteoporosis drugs may reduce the risk of Alzheimer’s disease and other dementias by up to 24%. The surprising findings raise the possibility that medications already used to strengthen bones could also help protect the aging brain.

3. A little-known protein could be a major culprit in type 2 diabetes

   Scientists have discovered that a buildup of a protein called Miro1 may be a hidden driver of insulin resistance in Type 2 diabetes, with preclinical experiments showing that removing it restores the muscles’ response to insulin. Exercise was also found to lower Miro1 levels in people with diabetes, revealing a potential new pathway for treating the disease.

4. Scientists discover a hidden warning sign of cannabis addiction

   A study of more than 17,700 US adults found that people who use cannabis in multiple forms have dramatically higher rates of daily consumption and addiction symptoms than those who stick primarily to one method. Nearly 67% of those who used almost every form met criteria for cannabis use disorder, compared with just 15% of people who mainly consumed edibles.

5. Scientists discover a surprising link between acorns and lyme disease

   After more than 35 years of research, scientists have uncovered surprising clues about what really drives Lyme disease risk. Contrary to longstanding assumptions, deer populations appear less important than mice, which can fuel a 40% increase in tick numbers the following year. Even acorn production can predict tick population surges two years in advance, while extreme temperatures may be far less deadly to ticks than scientists once believed.

6. Stronger flu shot linked to nearly 55% lower Alzheimer's risk

   A surprising new study suggests that a stronger flu shot could offer older adults significantly greater protection against Alzheimer's disease. Researchers at UTHealth Houston analyzed nearly 200,000 adults ages 65 and older and found that those who received a high-dose influenza vaccine had a nearly 55% lower risk of developing Alzheimer's, compared with a 40% reduction previously associated with the standard-dose vaccine.

7. Major trial challenges how doctors decide who really needs statins

   A study of nearly 5,800 adults found that heart scans measuring calcium buildup in the arteries led to the same observed rate of major cardiovascular events as traditional risk assessments, despite recommending statins to far fewer patients. Surprisingly, patients advised to take statins based on their scans were nearly three times as likely to stick with their medication, raising intriguing questions about how doctors should identify and treat heart disease risk.

8. Drinking 2–3 cups of coffee a day linked to dramatically lower dementia risk

   Drinking two to three cups of caffeinated coffee daily was linked to a dramatically lower risk of dementia and better cognitive functioning in a study spanning up to 43 years. The benefits appeared regardless of genetic risk, but decaffeinated coffee did not show the same association.

9. When your gut bacteria run out of fiber, they may start eating your gut lining

   Scientists have discovered that gut bacteria can feed on the protective mucus lining your intestines, producing potentially harmful compounds, but fiber helps keep this activity in check. Overlooked proteins in plant foods also help shift gut bacteria toward producing beneficial substances, revealing a surprising new reason plant-based diets may be good for you.

10. For decades, we were told to avoid full-fat dairy. New research says otherwise

    Full-fat dairy may not be the health villain it has long been portrayed as, according to a new study finding that three daily servings did not worsen weight, cholesterol, or insulin resistance over 12 weeks. Researchers also observed improvements in blood pressure and nutrient intake, raising questions about longstanding recommendations to choose low-fat dairy.

11. A 24-hour fast triggers a surprising repair response in the gut

    Scientists have discovered that fasting for just 24 hours increases a beneficial gut bacterium that helps the intestines regenerate after radiation damage. The preclinical findings could pave the way for new treatments that protect healthy tissue during cancer therapy, potentially without requiring patients to fast.

12. An anti-aging drug may help protect the brain before Alzheimer's symptoms begin

    A surprising new study suggests that an anti-aging drug could help protect people genetically predisposed to Alzheimer's disease. Researchers found that just four weeks of low-dose rapamycin improved brain blood flow in healthy middle-aged adults carrying the high-risk APOE4 gene variant, with women showing the strongest benefits. Because declining blood flow can occur years before Alzheimer's symptoms appear, the discovery raises hopes for preventing or delaying the disease before memory loss begins.

13. MIT scientists turn immune cells into cancer killers inside the body

    MIT scientists have developed nanoparticles that reprogram immune cells directly inside the body to attack cancer and harmful immune cells, eliminating tumors and reversing liver damage in mouse experiments. The breakthrough could make powerful immune therapies dramatically simpler and less expensive while opening new possibilities for treating cancer and autoimmune diseases.

14. A simple supplement may help clear brain fog after cancer

    A surprising new study from UCLA suggests that a naturally occurring molecule could help breast cancer survivors overcome the frustrating brain fog and exhaustion that can linger long after treatment ends. Researchers found that women taking an oxaloacetate supplement for eight weeks experienced substantial improvements in memory, concentration, mental clarity, and fatigue.

15. Einstein's equations reveal how gravity could break, reconnect, and release energy

    More than a century after Einstein revolutionized our understanding of gravity, scientists have uncovered a surprising new phenomenon hidden within his equations. Researchers at Columbia University and Universidad Adolfo Ibáñez have identified a theoretical process called "gravitational reconnection," in which structures within gravitational fields can break apart and reconnect, transferring energy into matter.