A new study has revealed that women are more sensitive to the key stress hormone, corticotropin releasing factor (CRF), which helps control the body’s reaction to stress.
Research found that, whilst women are extremely affected by even small amounts of CRF, men are relatively immune to even large amounts of the hormone. Scientists injected rats with CRF and found that the hormone bound more tightly to brain cell proteins in female rats, making them more sensitive to its effects.
The male rats, however, were able to reduce the levels of protein, stopping the hormone from binding and therefore reducing its effects on the brain.
On average, women lose an amazing ten pounds when they agree to train with a friend, as opposed to those who go it alone. Researchers studied a group of 3,000 women and found that 61°/ found it almost impossible to summon up the energy to exercise on their own.
However the same proportion of these women said they enjoy going for a jog or a swim with a friend and admit that they push themselves harder if they have someone with them.
If your day doesn’t officially start until that first sip of coffee in the morning, it may surprise you to hear that caffeine has no effect on waking up regular coffee drinkers.
A new study on 379 volunteers, found no difference in alertness between coffee fiends and their non-caffeine drinking counterparts.
‘Although frequent consumers feel alerted by caffeine, especially by their morning tea, coffee or other caffeine-containing drink, evidence suggests that this is actually merely the reversal of fatiguing effects of acute caffeine withdrawal,’ said Peter Rogers from the University of Bristol, who led the study. However, scientists recommend continuing in your caffeine habits whatever these may be, to avoid suffering withdrawal symptoms.
Checking your breasts for unusual lumps or, if you’re a woman between the ages of 50 and 70, having a routine screening every three years on the NHS, is the only way to detect early signs of breast cancer. But following a recent study, researchers are confident this may change in the future.
A new blood test that detects cancer more than a year before any symptoms appear could dramatically improve survival rates. The test works by searching for raised levels of a certain protein that is known to increase once cancer has developed in the body. The study, carried out by scientists at the Fred Hutchinson Cancer Research Center in Seattle, found that the protein called epidermal growth factor receptor was already detectable up to 17 months before women were diagnosed with breast cancer.
Women who drink more than four cups of tea a day are 78% more likely to develop the illness, according to the findings of a US study on more than 76,000 women. ‘We set out to determine whether tea or coffee consumption, or the methods of preparation of the drinks was associated with an increased risk’ said Professor Christopher Collins, from Georgetown University Medical Center.
However there are many proven benefits to drinking tea, including a 10% reduced risk of developing ovarian cancer and a significantly reduced chance of developing heart disease and several eye diseases.