Being in love is physically similar to the buzz of taking drugs and also has withdrawal symptoms, an expert on addiction has said. Baby. Dr John Marsden says dopamine - the drug released by the brain when it is aroused - has similar effects on the body and mind as cocaine or speed. "Attraction and lust really is like a drug. It leaves you wanting more," the National Addiction Centre head said. His findings will appear in a BBC programme to be broadcast in UK next month. "Being attracted to someone sparks the same incredible feelings no matter who you are. Love really does know no boundaries," he said. According to Dr Marsden - a chartered psychologist - the brain which processes emotions becomes "fired up" when talking to someone it finds attractive. Source: BBC News