Los hallazgos indican que la vitamina B3 parece prometedora para ayudar a rearmar un sistema inmunológico comprometido ...

Here’s what you need to know. This is especially concerning for Black women and children, who make up the overwhelming majority of hair extension users — more than 70% of Black women report wearing extensions at least once a year compared to less than 10% of other groups — and typically keep them in for weeks at a time. About 10% had plastic stabilizers called organotins at levels higher than what European regulators consider safe. The Silent Spring Institute study, published on February 11 in Environment & Health , analyzed the chemical composition of 43 hair extension products and found nearly all products tested contained at least one cancer-causing chemical. Many are linked to early puberty in girls, cancer, and conditions like uterine fibroids. A first-of-its-kind study found high levels of dangerous known chemicals and mystery chemicals in widely used hair extensions. Of the over 900 chemicals detected, researchers could identify only 169. This list represents just 20% of the chemicals found in the hair extensions. The other 80% of the chemicals were unidentifiable. While allowed to be used in beauty products, researchers detected a type of organotin, tributyltin chloride, in the hair samples that the EPA and international bodies...

O novo boletim do Instituto Nacional de Câncer (Inca), divulgado na última semana, traçou o cenário da doença para os próximos anos. A Estimativa 2026–2028:

Throughout the past decade, Northwestern University scientists have uncovered a striking principle of vaccine design: Performance depends not only on vaccine components but also on vaccine structure.