"Yes. There has been no further drop."
"Our supposition was that over that seven-year period there was a reduction in the number of men who were smoking in New Zealand. We also talked about the changes in pesticides usage in New Zealand - over that time period things like DDT (a commonly used pesticide for insect control) were banned."
"We couldn't say that. There are probably some environmental influences in the developing world, particularly with the number of chemicals we are exposed to which break down into oestrogen-like compounds, and we have concerns."
"And it is, but we just saw the average count fall from 110 million to 50 million and that’s quite a big change. There will be a range - some of those guys won’t have any sperm and there will be some who have 110 million.
"Sperm counts often just reflect general health, so the things we all know are good for our health are good for our sperm - things like:
- having a normal BMI
- exercising regularly
- not having really high levels of alcohol
- not smoking
- not doing illicit drug
- and eating well - eat plenty of antioxidant-rich foods such as fruits and vegetables, dark chocolate, berries, beans and nuts."