Flying may pose risk to sleep apnea sufferers
People with severe obstructive sleep apnea (OSA) taking airline flights may have a greater risk from cardiac stress than healthy people, according to new research. The scientists compared oxygen levels and breathing by simulating flight conditions. "It is normal for the rate of breathing to increase when air pressure falls,'' said Leigh Seccombe, an Australian scientist. "We found
that (for those with OSA), their breathing intensity increases at about the same rate as it does in healthy people." But the physiological stress and demand for oxygen was increased in people with OSA. "The work they do to run the core range of body functions (heart, lungs, brain) is much greater under cabin conditions.''
Booklet offers tips on fertility issues
An online survey indicates women are waiting longer than recommended before seeking medical advice about fertility concerns. A common recommendation is that couples seek medical help if they are unable to become pregnant after one year of regular, unprotected intercourse, or six months if the woman is older than 35. A new, free booklet, In The Know: What No One Tells You About Fertility, offers tips on handling accompanying emotional stress. The booklet, created by Fertility LifeLines and Conceive Magazine, is free by registering at www.FertilityLifeLines.com or by calling toll-free 1-866-538-7879.
By the numbers
83 Percent of brides-to-be who say they want to lose weight for their wedding.
33 Percent who hope to lose at least 30 pounds by then.
47 Percent who are happy with their fiance's weight.
17 Percent who considered their friends' weight when selecting bridesmaids.
Source: Fitness magazine survey of more than 1,000 brides-to-be.
for vision problem
Researchers report an advance in understanding biochemical changes that occur inside the eyes of people with diabetic retinopathy, a leading cause of vision loss and blindness in millions of adults. The researchers report discovery of 37 proteins that were increased or decreased in the eyes of patients with the disease compared with people without it. The disease involves swelling and leakage in blood vessels in the retina, the light-sensitive tissue in the back of the eye. The proteins at issue are in the vitreous, the gel-like material between the retina and the eye's lens.
Compiled from Times staff, wires