Other chronic health problems reported by the veterans include cancers, skin defects and fertility problems.

BBC: Veterans' long battle for nuclear tests' compensation

According to the Center for Disease Control, 7.3 million people in the U.S. suffer fertility problems.

FORBES: Invo BioScience and Next Generation IVF

Naturopathic education, such as it is, is insufficient to treat heart disease, fertility problems, or cancer.

FORBES: Michigan May Legalize Fake Doctors

But they also believe it could help people with fertility problems and some types of cancer.

BBC: NEWS | Health | Gene 'decides timing of puberty'

She has a teenage daughter from a previous relationship, but suffers from fertility problems because of a medical condition, so could not become pregnant naturally.

BBC: NEWS | Health | Woman 'cannot use IVF embryos'

Treatment is limited to those with a medical cause for infertility and in general couples must have been trying for a year to be diagnosed as having fertility problems.

BBC: ?1.5m to aid fertility services

Perceived fertility problems may also factor in, it said.

CNN: Study: Childhood cancer survivors less likely to marry

Dr Jane Stewart, a spokeswoman for British Fertility Society and consultant gynaecologist at Newcastle Fertility Centre said the ability to generate gametes (reproducing cells) or gamete producing cells in the lab would be a "landmark achievement in the understanding and potentially treatment of fertility problems".

BBC: Stem cell sperm study leads to successful mouse births

Recently, BPA during pregnancy has been linked to developmental problems in girls and reduced fertility in women, possibly underling its influence on female hormones.

FORBES: Environmental Risks For Breast Cancer: What You Need To Know