Health & Fitness

A major long-term study linked coffee consumption with lower risks of cirrhosis, liver cancer, and death from liver disease. Coffee drinkers also showed healthier liver scans and blood protein patterns, with less fat, inflammation, and scarring. Benefits appeared even at one or two cups daily and were strongest around three to four cups.

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A massive genetic study has identified nine new genes linked to hyperemesis gravidarum, the most severe form of pregnancy sickness, bringing the total number of known risk genes to ten. The discoveries provide fresh insight into why some women experience debilitating nausea and vomiting during pregnancy while others do not. Several of the newly identified genes are involved in appetite, nausea, metabolism, and brain function, opening the door to more targeted treatments.

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A global shift toward healthier diets could sharply reduce livestock farming, free up agricultural land, and cut emissions from land-use change by 85% by 2050. At the same time, fruit, vegetable, nut, and legume production could soar, creating a sweeping transformation of what the world grows and eats.

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Researchers are applying evolutionary theory to cancer by changing treatments before tumors have time to develop resistance. Mathematical models suggest that rapid, carefully timed switches between multiple therapies could improve cure rates.

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A single dose of psilocybin produced measurable changes in brain activity and possible changes in brain structure that lasted for up to a month. Participants who experienced the greatest increase in flexible, varied brain activity also reported more personal insight and later improvements in well-being. The findings suggest that the psychedelic experience itself may help people break free from entrenched patterns of thinking.

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For most adults, a daily caffeine habit may be safer for the heart than many people assume. A new American Heart Association review found that up to 400 milligrams of caffeine a day, roughly three to five cups of regular black coffee, is generally safe and may even be linked to lower risks of heart disease, stroke, heart failure, and Type 2 diabetes. But the source matters: highly concentrated energy drinks and shots can sharply raise blood pressure and trigger irregular heart rhythms.

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Scientists have developed a fully human antibody that halted the growth and spread of aggressive prostate cancer in preclinical research. Although more testing is needed, the drug’s unusual mechanism could open the door to a safer new treatment for advanced cancer.

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