If you have been diagnosed with rheumatoid arthritis, talk with your physician or an exercise physiologist about how best to exercise

Exercise can feel more difficult and draining than usual if you have rheumatoid arthritis, and it’s not just because of the stiff and painful joints c(...)

Jair Bolsonaro: embracing populism. Photograph: Andre Borges/Bloomberg

Jair Bolsonaro might have overseen one of the worst responses to the coronavirus pandemic anywhere but you would not necessarily know it today. A few(...)

A funeral takes place at the Vila Formosa cemetery in Sao Paulo, Brazil, for a victim of coronavirus. Photograph: Victor Moriyama/New York Times

Brazil has overtaken Britain as the country with the world’s second-highest Covid-19 death toll after its total rose to more than 42,000. On Friday e(...)

In this file photo taken on August 26th, 2019 Brazilian farmer Helio Lombardo Do Santos and a dog walk through a burnt area of the Amazon rainforest, near Porto Velho, Rondonia state, Brazil. Photograph: Carl de Souza/AFP via Getty Images

Deforestation in Brazil’s Amazon rainforest rose sharply in April, government data showed on Friday, as the coronavirus outbreak keeps many environmen(...)

 US president Donald  Trump meets with  Dr Deborah Birx, White House coronavirus response coordinator, in the Oval Office. Photograph: Doug Mills/EPA

Cases of coronavirus in the United States have surpassed one million, according to figures released by John Hopkins University on Tuesday night, meani(...)

Industry analysts have played down concerns about a possible backlash against Irish food companies in the wake of a high-level study linking processed(...)

Kiosks in Santiago’s city center feature products with black nutritional warnings on the labels of items high in sugar, salt, calories or saturated fat. Photograph: Victor Ruiz Caballero for The New York Times

They killed Tony the Tiger. They did away with Cheetos’ Chester Cheetah. They banned Kinder Surprise, the chocolate eggs with a hidden toy. The Chi(...)

Beef displayed at a supermarket in Rio de Janeiro, Brazil, on Friday. Brazilian police raided the premises of global meatpacking companies JBS SA and BRF SA on Friday, as well as dozens of smaller rivals, in a crackdown on alleged bribery of health officials that could threaten $12 billion in annual exports. Photograph: AFP/Getty Images

Brazilian police raided the premises of global meatpacking companies JBS SA and BRF SA on Friday, as well as dozens of smaller rivals, in a crackdown(...)

The researchers say full-sugar soft drinks account for a third of UK teens’ sugar intake, and are a major cause of increasing rates of obesity and Type 2 diabetes

Sipping a diet drink as a way to escape the Christmas sugar binge is a waste of time and money, according to a team of researchers. Going “sugar-fre(...)

Mosquitos, in the world’s largest mosquito factory   in Guangzhou, China, used for Zika research. Photograph: Kevin Frayer/Getty Images

Scientists in the US believe they are a step closer to developing a vaccine to protect people from Zika. Research on mice has shown that two vaccines (...)