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Cannabis use among older adults is rising fast, but today's marijuana is far more potent than many people realize -- and experts warn the risks may be underestimated. Stanford Medicine specialists say modern cannabis can increase the chances of heart ...

Scientists have uncovered a surprising dark side to vitamin B2: it may help cancer cells stay alive. The vitamin supports a cellular shield that protects tumors from ferroptosis, a form of programmed cell death linked to cancer suppression. In lab .. ...

Scientists have uncovered evidence that serotonin -- the same brain chemical boosted by many antidepressants -- may actually worsen tinnitus. Using advanced light-based brain stimulation in mice, researchers identified a serotonin-driven circuit ...

Researchers analyzing over 20,000 patients found that very high levels of the inherited cholesterol particle Lp(a) dramatically raise the risk of stroke, cardiovascular death, and major heart complications. Because most people with elevated Lp(a) ...

A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules called aptamers can selectively attach to senescent "zombie cells," which are ...

A groundbreaking Swedish study that tracked people for nearly 50 years has revealed when the body's physical decline quietly begins. Researchers found that fitness, strength, and muscle endurance start slipping around age 35, with the decline ...

Colorectal cancer is increasingly showing up in younger adults, with cases now appearing in people as young as their thirties -- often with no family history or warning signs. A major Swiss study analyzing nearly 100,000 cases over four decades found ...

A daily multivitamin may help slow biological aging, according to researchers studying older adults in a large clinical trial. After two years, participants taking multivitamins showed slower aging in several DNA-based "epigenetic clocks," with the . ...

Scientists analyzing the genomes of thousands of people across Japan discovered evidence for a previously overlooked third ancestral group, challenging the long-accepted "dual origins" theory. The newly identified ancestry appears linked to the ...

UC Davis researchers created brand-new psychedelic-like compounds by shining UV light on amino acid-based molecules. These compounds activated key serotonin receptors tied to brain plasticity and mental health benefits, but surprisingly did not cause ...