FRIDAY, Aug. 25, 2017 -- Researchers have linked higher exposure to a type of flame retardant to a greater likelihood that in-vitro fertilization won't work.
"Couples undergoing IVF and trying to improve their chances of success by reducing their exposure to environmental chemicals may want to opt for products that are flame retardant-free," said senior study author Russ Hauser. He is a professor of reproductive physiology at the Harvard T.H. Chan School of Public Health in Boston.
TUESDAY, July 25, 2017 -- Sperm counts in Western countries have decreased by half in recent years, suggesting a continuing and significant decline in male reproductive health, a new evidence review reports.
Sperm concentration decreased an average 52 percent between 1973 and 2011, while total sperm count declined by 59 percent during that period, researchers concluded after combining data from 185 studies. The research involved nearly 43,000 men in all.