Air pollution linked to DNA changes in sperm, research shows

Study of more than 2,000 men identifies epigenetic changes linked to exposure to common outdoor pollutants Air pollution appears to alter how sperm genes function, one of the largest fertility studies of its kind has found. Men exposed to common air pollutants while sperm were developing showed subtle DNA changes that affected whether genes were switched on or off, raising fresh concerns air pollution may harm male fertility. Continue reading...

By Hannah Devlin Science correspondent