Health

This is how tobacco damages our cells

My father smoked a pipe for some time, and I vividly remember that sticky black substance—tar—which stuck to the device's filter. Now imagine this stuff going into your lungs, and coating their walls. The picture is unpleasant, ...

Diseases, Conditions, Syndromes

Researchers start to find clues on the trail of long COVID

Tens of millions of people across the world are thought to suffer from long COVID, but four years after the pandemic was declared this elusive condition still cannot be tested for—let alone treated.

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