Top Health News — ScienceDaily Top stories featured on ScienceDaily’s Health & Medicine, Mind & Brain, and Living Well sections.
- Omega-3 fish oil shows promise against type 2 diabeteson May 31, 2026 at 5:15 am
A new study suggests fish oil may help reduce insulin resistance even in people who aren’t obese. In diabetic rats, omega-3 supplementation improved blood sugar levels, cholesterol, and inflammation by shifting immune cells into a more anti-inflammatory mode.
- Repairing DNA damage: Scientists discover a surprising new benefit of melatoninon May 30, 2026 at 9:11 am
A new study suggests melatonin supplements may help night shift workers boost their body’s DNA repair processes, potentially offsetting some of the damage linked to working overnight. The findings are early but raise the possibility of a simple strategy to help reduce long-term health risks associated with night shift work.
- This tomato-soy juice reduced inflammation in just four weekson May 30, 2026 at 5:53 am
A specially formulated tomato-soy juice packed with natural plant compounds may help calm inflammation linked to obesity, according to a new clinical study. Healthy adults with obesity who drank the juice daily for four weeks saw significant reductions in several key inflammatory proteins in their blood, while a control tomato juice did not produce the same effect.
- Caffeine reversed memory problems caused by sleep deprivationon May 30, 2026 at 5:27 am
Scientists discovered that sleep deprivation damages a key brain circuit responsible for social memory, making it harder to recognize familiar individuals. In laboratory studies, caffeine restored communication between neurons in this pathway and reversed the memory deficits caused by lost sleep. The effect was remarkably targeted, helping the impaired circuit recover without overstimulating normal brain function.
- Protein traffic jams may explain aging, memory loss, and Alzheimer’son May 29, 2026 at 2:17 pm
Scientists at Stanford may have uncovered a hidden reason our brains decline with age. Studying the ultra-short-lived turquoise killifish, researchers discovered that the cellular machinery responsible for building proteins begins to jam and malfunction over time. Tiny structures called ribosomes start colliding and stalling while reading genetic instructions, triggering a chain reaction that leads to faulty proteins and harmful clumps linked to diseases like Alzheimer’s.
- Hidden driving danger when edible cannabis and alcohol mixon May 29, 2026 at 1:42 pm
Using cannabis edibles and alcohol together may make drivers far more impaired than either substance alone, according to new research from Johns Hopkins. Even more concerning, common field sobriety tests often failed to detect the cannabis-related impairment.
- A silent kidney crisis is spreading far faster than experts expectedon May 29, 2026 at 11:10 am
A sweeping global study found that chronic kidney disease now affects nearly 800 million people and has become one of the world’s leading causes of death. Often silent in its early stages, the condition is also a major contributor to heart disease and may be even more common than current estimates suggest.
- Vitamin B12 and folate deficiencies linked to chronic fatigue
- Human organoids reveal how to reverse “irreversible” nerve damageon May 29, 2026 at 2:55 am
Cambridge researchers created miniature brain-and-spinal-cord systems in the lab that can send signals and even trigger tiny muscle contractions. They discovered that human neurons gradually lose their ability to regrow after damage during development — but that ability can potentially be switched back on. The team identified a gene network controlling this process and found that an existing hormone drug dramatically boosted nerve fiber regrowth.
- CBD may slow Alzheimer’s by calming the brain’s immune systemon May 29, 2026 at 1:35 am
CBD may be doing far more than just easing pain or anxiety — new research suggests it could help fight Alzheimer’s disease by calming the brain’s runaway immune response. In experiments using Alzheimer’s mice, scientists found that inhaled CBD reduced key drivers of neuroinflammation, a damaging process increasingly linked to memory loss and brain degeneration.