Researchers have found that stress can affect a woman's ability to conceive.
A study between Oxford University and the U.S. National Institutes of Health has discovered the stress hormone alphaamylase is consistently higher in women who have experienced problems trying to fall pregnant.
Oxford University spokeswoman Dr Cecilia Pyper, a medic from the National Perinatal Epidemiology Unit, explained: 'This is the first study to find that a biological measure of stress is associated with a woman's chances of becoming pregnant that month.
'We found that those women with high levels of a marker for stress were less likely to succeed in conceiving.
'The findings support the idea that couples should aim to stay as relaxed as they can about trying for a baby.
'In some people's cases, it might be relevant to look at relaxation techniques, counselling and even approaches like yoga and meditation.
'Many couples are very keen to know what they should do to improve their chances of conceiving and having a healthy baby, and this will help us provide the best advice.'
The findings suggest that women who are anxious are 12 per cent less likely to become pregnant than those who stay calm.
What do you think?
Do you believe the research?
Is calmness and serenity the key to successful baby-making?