Chilling discovery exposes tiny differences between psychopaths and ordinary people

More from Science & Technology

• All the surprising clues your nose can reveal about your health

• Groundbreaking discovery in Egypt's Sphinx uncovers 'hidden' mystery that fuels theory of underground city

• Catastrophic US volcano 'is still active' as scientists reveal source behind hundreds of earthquakes in 12 hours

• World's NARROWEST car is unveiled: Ultra-slim Fiat Panda is just 20 inches wide - and is fully functional (if you can fit in it!)

• 'Moon Illusion' will appear in the night sky TOMORROW... here's how to see the visual phenomenon

• Taking a common supplement for 12 weeks found to reverse some autism  symptoms

• James Webb telescope spots super rare 'Cosmic Owl' structure

• The AI band that's fooled millions: Controversy over fake indie group Velvet Sundown goes into overdrive - so why IS Spotify peddling their 'music'?

• Psychologist reveals the simple everyday act that can make couples feel 20 per cent happier

• Musk's AI firm forced to delete posts after chatbot praises Hitler and makes antisemitic comments

• Elon Musk slammed for sticking the knife into Donald Trump in pettiest way ever as feud spirals

• Company attempting to bring back woolly mammoth turn their sights to the giant moa - a 3.6 metre-tall bird that weighed 230kg

• Hundreds of earthquakes rattle catastrophic volcano sparking fears of an eruption

• Today will be the shortest day in history as Earth's rotation unexpectedly speeds up

• Travel chaos as multiple major US airports ground ALL flights

• Blackout crisis looms as Americans face full month of outages plunging hospitals into deadly shutdowns

• Microsoft boss offers callous advice to workers who'd just been fired because of AI advances

• Foolproof way to win any jackpot according to maths (but there is a teeny catch)

• Bees are losing their buzz! Warmer weather reduces frequency and pitch of wing vibrations, researchers warn

• Some babies really are born fussy, expert reveals - and there's not much parents can do about it