https://www.nhlbi.nih.gov/health/educational/lose_wt/BMI/bmi-m.htm
https://www.ncbi.nlm.nih.gov/pubmed/24813759
Moderate exercise increases both male (Vaamonte, 2012)
https://www.ncbi.nlm.nih.gov/pubmed?term=PMID%3A%20%20%20%20%2022234399 and female fertility (Wise, 2012)
https://www.ncbi.nlm.nih.gov/pubmed?term=PMID%3A%20%20%20%20%2022425198
https://www.ncbi.nlm.nih.gov/pubmed?term=PMID%3A%20%20%20%20%2017012457
(Wise 2011)
(Vujkovic, 2010, Twigt, 2012, Gaskins, 2012)
Trans fats should be avoided entirely (Chavarro, 2011)
Oxidative stress increases and the level of antioxidants in semen decreases with age, and sperm DNA fragmentation increases as men get older (Schmid, 2007, Tirado, 2009, Quant, 2009).
Men having reduced semen quality have a significantly lower intake of dietary antioxidants (Mediola, 2010).
(Chavarro, 2009, Safarinejad, 2011, Attaman, 2012)
(Sanders, 1999, Smeenk, 2001, Ebbesen, 2009)