Enthusiasm for hallucinogens has surged, but has the evidence kept pace? Dr Nassir Ghaemi examines the research behind ketamine, psilocybin, and MDMA — and argues for a more critical look.
Canada Joins Global Call for Exercise Physiology for Obesity
A new joint global statement says that exercise physiologists should be part of a multidisciplinary obesity care team for patients taking weight management medications.
Keto diet cut liver fat by 67% in a clinical trial
A ketogenic diet outperformed Mediterranean and low-fat diets in several measures of metabolic health during a clinical trial involving people with obesity, prediabetes, and fatty liver disease. All three groups lost about 10% of their body weight, but keto reduced liver fat by 67%, compared with 45% for the other diets. About half of the keto group also no longer qualified as having prediabetes after four to five months.
Long-term melatonin use linked to 90% higher heart failure risk
People with chronic insomnia who used melatonin long term had a roughly 90% higher risk of developing heart failure over five years, according to a large preliminary study. The findings do not prove melatonin causes heart problems, but they raise new questions about the safety of taking the popular sleep supplement for extended periods.
Shingles vaccine linked to 24% lower dementia risk
Older adults who received the Shingrix shingles vaccine were 24% less likely to be diagnosed with dementia over four years in a study of more than 500,000 people. Researchers estimate the difference could amount to roughly one dementia case prevented for every 17 people vaccinated.
Women for Wolves (@womenforwolves) • Instagram photos and videos
7,292 likes, 73 comments - womenforwolves on August 16, 2026: "What books are we missing? Drop your favorite perspective-shifting reads about animals and the natural world below. 📚👇💜🐺
For generations, human assumptions about sex, gender, power, and hierarchy shaped not only how we talked about animals; but what scientists looked for in the first place. 🐺 From the myth of the alpha male, to what gender dynamics look like across species, these books demonstrate how sexism and prejudice shaped our perceptions of science.
These books challenge narratives from different perspectives, from evolutionary biology and animal behavior to feminist and multispecies thought. 🌿
Because nature doesn’t give us one universal social order!
Sources: Cooke (2022); Kamath & Packer (2025); Gumbs (2020)".
Effects of creatine supplementation with and without exercise and diet intervention on body composition, cognitive function, and markers of health in middle-aged and older adults
Posted by LongevityDietitian - 13 votes and 3 comments
For 20 years, women were warned that hormone therapy raised their dementia risk. A study of 21,000 women just looked inside their autopsied brains and found the opposite
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A 10-year longitudinal study found that women who had sex or masturbated at least once a week were 28% less likely to experience early menopause compared to those who did it less than once a month. Scientists believe that sexual activity is signaling to the body that pregnancy is still possible.
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A study of 2,410 adults found that regularly sleeping nine hours or more raises blood levels of the main protein used to detect early Alzheimer's. The curve spikes sharply past ten hours
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Huge Deal. Aubrey de Grey Notified Me of This Breakthrough in a Newly Developed Enzyme That Cleaves Glycation. In Humans. Not Mice. Human Tissue. Major Source of Aging. Lay Article Shared, Scientific Article Shared in Text/Comment : r/immortalists
Scientific article: https://www.nature.com/articles/s41467-026-75141-2 Revel Pharmaceuticals, a spin out from SENS years ago. Also happy to see...
Testosterone heightens neural sensitivity to social inclusion and exclusion, study finds. Healthy men who received testosterone showed amplified brain activity related to empathy for others’ inclusion and exclusion experiences, even though their self-reported feelings of empathy remained unchanged.
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For decades, doctors assumed men's libido follows testosterone, peaking in youth and declining steadily. A study of 67,000 people just showed that assumption is wrong
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