A recent study by U.S. researchers suggests that having a large number of children is bad for parents' health - particularly that of mothers. It also found that couples who have more children may have a shorter life span as compared to the ones with fewer kids.

The study led by Dustin Penn and Ken Smith of the University of Utah studied 21,000 couples living in Utah between 1860 and 1985. According to their data the couples bore a total of 174,000 children

Recent research conducted at University of Rochester found a key enzyme that cuts short a human's cellular lifespan in an effort to thwart cancer is linked with body mass.

The study discovered why some animals express telomerase, an enzyme that lengthens the lives of cells but also increases the rate of cancer, while others, such as humans, don't

A new study finds women who are heavy smokers have a hard time becoming pregnant.

Research which will debut in the journal Human Reproduction, finds that smoking damages the lining of a woman's womb, making it harder for an egg to take hold

A new study conducted at McGill University Health Centre examines why sperm banks are unpopular with patients. According to the study's investigations, there is need of improving doctor-patient communication about the benefits of sperm banking.

Dr. Peter Chan, senior author of study stated that the testicular cancer accounts for over 25 per cent of all cancers diagnosed in men aged 20-24 years and Hodgkin's lymphoma accounts for about 15 per cent in the same age group

Scientists claim they have made significant progress in treating endometriosis. A painful condition, it afflicts 10 to 15% of women and is due to tissue that lines the womb growing elsewhere in the pelvis.

On tests using mice, the scientists discovered the abnormal growth was promoted by iron