Researchers at Brigham and Women's Hospital looked at the sleep-wake cycles of 16 men who experienced long hours at work and jet lag. One group was given just a small amount of caffeine every hour over the course of a month while the other group received a sugar pill. The group taking caffeine performed better on thinking tests and were less likely to accidentally fall asleep during the day than the group taking the placebo. However, the caffeine group reported feeling sleepier than the other group suggesting that yes, caffeine may keep you awake and alert but it can't replace the benefits of a good night's sleep.
A risk factor for heart disease and stroke may also play a role in the risk for brittle bones. Two new studies in the New England Journal of Medicine find that people with high levels of homocysteine have a higher rate of bone fractures. Homocysteine is an amino acid found in the blood. High levels have been linked to an increased risk of heart disease. Researchers aren't sure whether the high homocysteine causes the bones to weaken or just plays a role in the process. Foods rich in B vitamins like leafy greens and whole wheat bread help the clear homocysteine from the body. Your doctor can measure your level of homocysteine with a simple blood test. This research comes from scientists at Rotterdam University in the Netherlands and from Hebrew Rehabilitation Center for Aged Research and Training Institute. Both studies are published in the New England Journal of Medicine.
If you've ever complained about Lubbock allergies and threatened to move so you could breathe the specialists at Cedars Sinai Medical Center say you probably ought to just stay put. The reason they discourage moving away from what makes your allergies flare-up is that most people with allergies will discover after the move that things are better for a short time. But eventually, if you're allergy prone, you'll just discover new allergy triggers in your new neighborhood.