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sickle cell disease.”My parents were devastated. My mum cried the whole day and night after the diagnosis.Originally from Sierra Leone, West Africa, they had only heard and seen nightmare tales of the sufferings and sudden deaths of people with sickle cell anemia (SCA). Based on what they knew then, my life expectancy was set at…

By Michael Marshall Some trilobites had eyes similar to modern crustaceans like this brine shrimpBrigitte Schoenemann An animal that lived 429 million years ago had compound eyes almost identical to those of modern insects like bees and dragonflies. The finding implies that the compound eye evolved very early in the history of animals. “I am…

Share on PinterestThere is little evidence to suggest that living at high altitudes protects against COVID-19.A recent analysis found that, compared with lowland areas, there is a lower incidence of severe COVID-19 in Tibet and parts of Bolivia and Ecuador that are more than 2,500 meters above sea level.Lead study author Christian Arias-Reyes — from…

When COVID-19 began ravaging large U.S. cities like New York and Los Angeles in March 2020, I was living in Orlando, Florida. And while the people living and working in the city were upended, my life remained relatively unchanged. I watched as my friends from around the country were ordered to stay inside. Meanwhile. I…

A health worker takes samples from a man to test him for Covid-19 coronavirus. Africa's first data on how Covid-19 affects people living with HIV and TB was announced by the Western Cape.People living with HIV and TB do face a higher risk of dying of Covid-19, but it's lower than previously expected.There wasn't a…