There is no evidence that impaired blood flow or blockage in the veins of the neck or head is involved in multiple sclerosis, according to a new paper in an open access journal.
By Marcelo Teixeira NEW YORK (Reuters) - Numerous private Brazilian companies trying to slow the destruction of the Amazon forest are using a large cl.
RIO DE JANEIRO - A few months back, President Jair Bolsonaro was getting crushed in the polls for Brazil's October elections, trailing his nemesis, ex-president Luiz Inacio Lula da Silva, so badly it seemed he might lose in the first round.
More people are getting COVID-19 twice, suggesting immunity wanes quickly in some science.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from science.org Daily Mail and Mail on Sunday newspapers.