Stress link to breast cancer ?

WOMEN with high levels of stress in their everyday lives are at
less risk than others of developing breast cancer for the first
time, according to research. 

Scientists from Denmark drew their conclusions after studying
6,689 women for 18 years, and speculated that it may be because
daily stress suppressed production of oestrogen, which is a risk
factor in breast cancer. 

"Prolonged low key stress of everyday life results in a
persistent activation of stress hormones which may impair
oestrogen synthesis and may therefore be related to lower risk
of breast cancer," they wrote. 

However, they pointed out that this theory was untested and
deserved greater investigation. But they warned that stress was
not a health cure, since high levels had also been linked to
higher risk of heart disease.