Size matters: the benefit of having big balls. Andrew Griffiths talks to Allan Pacey, Britain's first Professor of Andrology, about the effect of testicle size on reproduction and why he's concerned about young men consuming protein powder. Men with big testicles produce more sperm Photo: Stephen Goodwin / Alamy.
genital herpes affects the skin or mucus membranes of the genitals the virus is spread from one person to another during sexual contact there are two kinds of hsv hsv 1 most often affects the mouth and lips and causes cold sores or fever blisters but it can spread from the mouth to the genitals during oral sex
How mom or dad lives can affect the sex of their baby too. A number of studies have suggested that factors like nutrition, wealth, and even where the parents live can affect the odds of having a boy or a girl. But none of these effects is very large.