What’s getting into you- the science behind stinging nettles

Why do stinging nettles sting? This is a question I ruefully thought after falling backwards into a bed of nettles. Each nettle is covered in tiny hairs. Some are longer than others, and these are called trichomes (from the Greek τρίχωμα meaning ‘hair’). Each hair is actually a singular cell, which has elongated to form this extension. It’s shape […]