Chromosomes determine many differences between the sexes. Among others, they determine hormonal balance, circulation and the immune system.
Does the coronavirus get weaker when temperatures rise? Virologist Thomas Pietschmann explains why spring really gives hope and why women have a clear advantage in the fight against the COVID-19 disease.
A Romanian MP believes that gender identity studies are "a Marxist ideology" and "a danger for children." Parliament has approved the bill he proposed, banning schools and universities from teaching gender studies.
Men, women and children all become infected with the new coronavirus equally often. But men tend to suffer more severe cases of COVID-19 and are more likely to die of it. DW looks at possible explanations.
Researchers found that more than 500 fish species can change their sex. Even for humans, sex is not always as clearly defined as we think.
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