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News & Articles By Willow Tohi
11/05/2025
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By Willow Tohi
Turns out Stone Age tools were almost perfect: Early humans perfected a tool technology that lasted 300,000 years
Early humans in Kenya used the same, highly effective stone tool technology for over 300,000 years, from 2.75 to 2.44 million years ago. Toolmakers were surprisingly selective, consistently choosing fine-grained chalcedony to produce sharp, predictable cutting edges. This technological stability occurred despite a dramatic environmental shift from humid forests to arid grasslands. Butchery marks on […]
11/05/2025
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By Willow Tohi
The hidden stressor: How inadequate hydration primes your body for overload
Dehydration amplifies the body’s stress response, causing a significantly higher spike in the stress hormone cortisol. A new study found that individuals with low daily fluid intake had a 50 percent greater cortisol surge during stress tests than well-hydrated peers. The mechanism involves the hormone vasopressin, which conserves water but also activates the brain’s stress-signaling […]
11/04/2025
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By Willow Tohi
Breaking the “doom loop”: Scientists identify brain pattern preceding negative thought spirals
A new study has identified a distinct “pre-self pattern” of brain activity that predicts a shift into self-focused thought. Maladaptive self-focus, or rumination, can trap individuals in a negative “doom loop” linked to depression and anxiety. While brain mapping is advancing, predicting mental illness through scans alone remains complex and not yet practical. Experts emphasize […]
11/01/2025
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By Willow Tohi
A century-old glow: Museum bats reveal a luminous secret
Museum specimens from six North American bat species emit an identical green glow under UV light. The trait is remarkably stable, with bats collected in 1922 glowing the same as those from the 2000s. The consistent green wavelength across species suggests they inherited the trait from a common ancestor. Bats can likely see this specific […]
10/29/2025
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By Willow Tohi
The key to mental longevity: Creative hobbies like dancing and gaming can turn back your brain’s clock
A new study using “brain clocks” reveals that creative activities can make your brain appear 4-7 years younger. Experts in tango, music, visual arts and strategy gaming showed the most significant “brain age gap” benefits. Even short-term training in a complex video game for 30 hours reduced participants’ brain age and improved attention. The benefits […]
10/26/2025
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By Willow Tohi
The silent sentinel: Ancient wisdom and modern science converge on kidney health
Chronic kidney disease is a pervasive but often silent threat, with many unaware of their condition. Traditional Chinese Medicine offers a holistic view, linking symptoms like tinnitus and bone loss to kidney vitality. Key lifestyle pillars for prevention include blood pressure control, a balanced diet, regular exercise and proper hydration. Specific foods like beans, black […]
10/25/2025
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By Willow Tohi
The hidden driver of aging: How your stress hormone predicts your healthspan
Chronic stress and elevated cortisol levels are a primary driver of accelerated biological aging and metabolic dysfunction. Cortisol disrupts natural hormonal rhythms, leading to leptin resistance, increased appetite and abdominal fat gain. Abdominal fat is not just a cosmetic issue but a sign of internal hormone miscommunication and heightened disease risk. Nutritional strategies, including omega-3s, […]
10/24/2025
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By Willow Tohi
The hidden heart risk in your mouth: How gum disease clogs arteries
A landmark clinical trial establishes that treating severe gum disease directly reduces a key marker of cardiovascular risk. Chronic oral infections cause systemic inflammation and allow bacteria into the bloodstream, damaging blood vessels. Experts call for an end to the historical separation between dental and general medical care. Approximately 40 percent of U.S. adults have […]
10/23/2025
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By Willow Tohi
A scientific reckoning: Major study questions the efficacy of common pneumonia vaccines
A landmark study of over 2.2 million adults found pneumococcal vaccines were associated with a significantly increased risk of hospitalization and death from pneumonia. The research, published in BMC Infectious Diseases, contradicts decades of public health guidance promoting these vaccines for older and at-risk adults. Even after adjusting for age and comorbidities, recipients of the […]
10/22/2025
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By Willow Tohi
The hidden culprits of chronic fatigue
A new study links specific blood molecules, influenced by diet and hormones, to excessive daytime sleepiness (EDS). Higher levels of certain omega-6 fatty acids and other metabolites were associated with greater alertness. Some compounds, like tyramine from aged and fermented foods, were linked to increased sleepiness, particularly in men. The findings suggest dietary adjustments could […]
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