Some flavours of e cigarette liquid affect male sperm count, UK study finds The National E Liquids & Vape Juices NZ NZVAPOR Vaping may lower sperm counts, decrease libido, and shrink the testicles, scientists warn The authors wrote: 'It should be considered that although [e cigarette] liquid has been introduced as harmless in smoking cessation Vaping lowers men's sperm count and shrinks their testicles Study Pulse Kenya