Overweight men have poorer sperm count
Thursday 07 July 2011
Overweight or obese men, like their female counterparts, have a lower chance of becoming a parent, according to a comparison of sperm quality presented at a European fertility meeting Monday.
In what they described as the largest study of its kind, doctors looked at sperm samples from 1,940 men and matched them to the donor's weight.
The benchmark was the body mass index (BMI), a measure of body fat among adults. Under this, normal weight is defined as a BMI of 18.5-25; overweight as 25-30 and obesity as 30 or more.
The higher the count in excess weight, the more the sperm quality suffered, especially among those in the obese category, according to the findings, presented at the annual conference of the European Society of Human Reproduction and Embryology (ESHRE) in Stockholm.
"Excess weight causes a modification in sperm characteristics, probably as a result of hormonal disturbance, which results in lower sperm numbers, motility and vitality," said Paul Cohen-Bacrie, scientific director at Eylau-Unilabs in Paris, part of a Swiss-based network of labs in 12 European countries.
"This leads to losses in conception potential," he said by phone.
The research found that the sperm count was lower by 10 percent among overweight men, and by 20 percent among obese men, compared with counterparts of normal weight.
The percentage of men who had a zero sperm count rose almost fourfold, from one percent in the normal weight category, to 3.8 percent, in the obese category.
Life & Style blogs
Planes go hybrid-electric in important step to greener flight
Boxing Day sales: From Asos to Harrods, the best fashion deals
Healthy living could have prevented half a million cancer cases over last five years
'Tis the season!: Google celebrates Christmas Eve with second animated Doodle
The food fad that's starving Bolivia
- 1 PlayStation and Xbox hacked by Lizard Squad
- 2 The 'Black Museum': After 150 years, public set to see exhibits from police’s grisly crime museum
- 3 British actor Idris Elba cannot star as James Bond because he is black, says shock jock Rush Limbaugh
- 4 Vagina canoe artist defends herself over ‘obscenity’ charges
- 5 The Queen’s speech 2014: Recap and Twitter reaction to Game of Thrones reference
£40000 - £43000 per annum + benefits: Ashdown Group: Senior Marketing Executiv...
£40000 - £43000 per annum + benefits: Ashdown Group: An international organisa...
£25000 - £30000 per annum: Ashdown Group: Internal Recruiter -Rugby, Warwicksh...
£70000 - £75000 per annum + benefits: Ashdown Group: Marketing Manager/Marketi...