Drinking and sperm

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Resources and videos. Many things can damage your sperm, including being overweight, smoking, older age, and exposure to harmful chemicals. Being overweight can reduce your fertility because it lowers your sperm quality, including sperm count and movement. It also makes you more likely to produce abnormal sperm. Being overweight also reduces testosterone male sex hormone production, which can cause sexual problems, such as difficulties getting an erection.
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expert reaction to alcohol consumption and sperm and semen quality

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It's not just mums who need to avoid alcohol when trying for a baby

Alcohol consumption is widespread in the Western world. Some studies have suggested a negative association between alcohol intake and semen quality although others have not confirmed this. Reference lists of retrieved articles were searched for other pertinent studies. Main outcome measures were sperm parameters, if provided as means standard deviation or standard error or as medians interquartile range.
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Semen quality and alcohol intake: a systematic review and meta-analysis

Men who habitually drink alcohol — even those who do so responsibly — run the risk of compromising their fertility. In , the U. The new suggestions were significantly lower than the old ones, which had stated that women should consume no more than 2 to 3 units of alcohol per day and men no more than 3 to 4.
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The researchers found that sperm levels and quality were particularly reduced in men consuming above the recommended guidelines for intake of alcohol. However, with regard to alcohol consumption and semen quality the data has been conflicting, with some reports suggesting evidence of harm and others showing no effect. This equates to 21 to 28 units per week.
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