Estudo encontra ligação entre o pessimismo e a demência
Autores do estudo consideram que o pensamento negativo deve ser considerado um fator de risco para a doença.
Se é uma pessoa pessimista, saiba que isso não é bom para o seu cérebro. Um novo estudo descobriu que o pensamento negativo repetitivo pode estar ligado, mais tarde na vida, ao declínio cognitivo e a maiores depósitos de duas proteínas nocivas, responsáveis pela doença de Alzheimer.
“Propomos que o pensamento negativo e repetitivo possa ser considerado um novo fator de risco para a demência”, afirmou a psiquiatra e autora principal do estudo, Natalie Marchant, à CNN.
New gut-brain link: How gut mucus could help treat brain disorders
Mucus is the first line of defence against bad bacteria in our gut. But could it also be part of our defence against diseases of the brain?
Exercise improves memory, boosts blood flow to brain
Scientists have collected plenty of evidence linking exercise to brain health, with some research suggesting fitness may even improve memory. But what happens during exercise to trigger these benefits? New UT Southwestern research that mapped brain changes after one year of aerobic workouts has uncovered a potentially critical process: Exercise boosts blood flow into two key regions of the brain associated with memory. Notably, the study showed this blood flow can help even older people with memory issues improve cognition, a finding that scientists say could guide future Alzheimer’s disease research.
A happy partner leads to a healthier lifestyle
A new study has found there is some scientific truth to the saying “happy wife, happy life.”
Lançado na Europa mapa do envenenamento de alimentos no Brasil
Um ousado trabalho de geografia que mapeou o nível de envenenamento dos alimentos produzidos no Brasil foi lançado em maio, em Berlim, na Alemanha, país que contraditoriamente sedia as maiores empresas agroquímicas do mundo.
Alzheimer: cientistas diminuem inflamação no cérebro e revertem demência
Cientistas dizem que, pela primeira vez, conseguiram reverter a demência em ratos reduzindo a inflamação no cérebro, em vez de atacar as proteínas invasoras típicas que provocam o problema, as chamadas as placas amilóides encontradas em pessoas com doença de Alzheimer.
O último estudo publicado na Science Translational Medicine sugere que o direcionamento da inflamação no cérebro pode deter a demência.
Estudo consegue reverter completamente Alzheimer apenas pela retirada de 1 enzima
Pesquisadores norte-americanos encontraram um jeito de reverter completamente o Alzheimer em testes através da remoção gradativa de uma enzima que age no desenvolvimento da doença.
Scientists ‘Clear’ Alzheimer’s Plaque From Mice Using Only Light And Sound
Clumps of harmful proteins that interfere with brain functions have been partially cleared in mice using nothing but light and sound.
Research led by MIT has found strobe lights and a low pitched buzz can be used to recreate brain waves lost in the disease, which in turn remove plaque and improve cognitive function in mice engineered to display Alzheimer’s-like behaviour.
It’s a little like using light and sound to trigger their own brain waves to help fight the disease.
This technique hasn’t been clinically trialled in humans as yet, so it’s too soon to get excited – brain waves are known to work differently in humans and mice.
But, if replicated, these early results hint at a possible cheap and drug-free way to treat the common form of dementia.
So how does it work?
Dancing can reverse the signs of aging in the brain
As we grow older we suffer a decline in mental and physical fitness, which can be made worse by conditions like Alzheimer’s disease. A new study, published in the open-access journal Frontiers in Human Neuroscience, shows that older people who routinely partake in physical exercise can reverse the signs of aging in the brain, and dancing has the most profound effect.
