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Nos casos em que são encontradas correlações, os cientistas devem levar em consideração a resposta à dosagem, as diferenças entre irmãos e outros fatores para indicar uma possível relação de causalidade.
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As declarações do governo Trump de que o uso de Tylenol durante a gravidez causa autismo sugerem uma certeza que a ciência não apoia.
In cases where associations are found, researchers must consider dosage response, differences between siblings and other factors to determine a cause-and-effect relationship.
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With a change of ownership in the works, TikTok’s algorithm – the secret sauce of its success – is going to be reset for US users. What differences users will see is unclear, but changes are coming.
There were about 3,330 overdose deaths in Pennsylvania in 2024, down from over 4,700 in 2023.
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A decade after the first discovery, scientists have used these waves to find a unique merger, a massive binary system and a crystal-clear gravitational wave signal.
O ex-presidente Jair Bolsonaro é visto em sua residência em Brasília, em 3 de setembro de 2025: nem todos os golpistas são responsabilizados por suas ações, mas caso do brasileiro pode ser um exemplo do fim de suas pretensões políticas.
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Failed coup leaders don’t always face punishment – and some who do receive treatment outside of courts.
This well was contaminated with high levels of PFAS from firefighting foam used at a small airport nearby.
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PFAS exposure can vary significantly from one community to the next. A close-up view of three Great Lakes states offers some insights for everyone.
A pilot program to distribute waste bags to hikers on Mount Elbert in Colorado successfully cut down the amount of human waste on the massive mountain.
Shari Edelson
Most people want to properly dispose of their waste, but they’re typically not prepared. Land managers can help users meet the moment.
Os cogumelos do gênero “Amanita” são comumente usados em produtos nootrópicos, mas contêm compostos muito diferentes dos chamados cogumelos “mágicos”, que funcionam de maneira diferente no cérebro e geralmente são mais tóxicos que a psilocibina.
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Com poucas evidências e regulação, produtos à base de cogumelos afirmam melhorar a função cognitiva, mas trazem riscos de efeitos colaterais graves, como convulsões e problemas cardiovasculares
Amanita mushrooms are commonly used in mushroom-based products.
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With little evidence or regulatory oversight, some mushroom products claim to improve cognitive function while posing a risk of serious side effects, including seizures and cardiovascular risk.
Vehicles, energy production and industry are the largest emissions sources in the U.S.
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