Men have a biological clock, too: Landmark study warns potential dads not to put off fatherhood as they are responsible for majority of faulty genes

Want to delay fatherhood Freeze sperm in your 30s potential dads are told as research reveals older men pass on faulty genes40-year-old father two-and-half times more likely to pass on damaging mutations than 20-year-oldGenes linked to autism and schizophreniaExperts advise ageing men to freeze their sperm | UPDATED: 01:35 GMT, 23 August 2012 The march of time: Researchers have found that older fathers pass down the majority of the faulty genes linked to conditions such as schizophrenia (file picture posed by models) Men delaying fatherhood have been told to consider freezing their sperm after a study showed they also have a rapidly ticking biological clock.

Women who fail to have children via IVF "have higher risk of mental issues"

Women who fail to have children via IVF 'have higher risk of mental issues' Childlessness increased the risk of alcohol and substance abuse by 103% and schizophrenia by 47% | UPDATED: 16:13 GMT, 2 July 2012 Women who remain childless after seeking fertility treatment are significantly more at risk of being hospitalised for mental problems, a study has found.

How Your Cat Is Making You Crazy

Jaroslav Flegr is no kook. And yet, for years, he suspected his mind had been taken over by parasites that had invaded his brain. So the prolific biologist took his science-fiction hunch into the lab. What he’s now discovering will startle you. Could tiny organisms carried by house cats be creeping into our brains, causing everything from car wrecks to schizophrenia?

Seasonal Affective Disorder: Teenagers more likely to be grumpy with winter blues if they were born in spring

Teenagers more likely to be grumpy with winter blues if they were born in spring Exposure to natural light in early days of life may somehow programme the nervous system Winter blues: Seasonal affective disorder has been linked to how much sunlight a baby is exposed to in the days following birth Teenage mood swings are usually blamed on hormonal changes, relationship problems or simple contempt for overbearing parents.

"Love hormone" which makes mothers kinder could help treat autism

'Cuddle hormone' which makes mothers kinder could help treat autismMothers with higher oxytocin levels are more attentive Monkeys more trusting after hormone shot'Breaks down normal social barriers', say scientists Mothers with higher levels of oxytocin were more affectionate A natural chemical known as the 'cuddle hormone' makes people kinder and could help millions suffering from psychiatric disorders such as autism, say scientists. Researchers found that women with higher levels of oxytocin – a hormone produced in the brain – were more affectionate towards their babies. Meanwhile another study found participants who were given doses of oxytocin, offered 80 per cent more money to strangers than those given a placebo.