Secrets of Super-Healthy People
Some people never seem to get sick. What are they doing that the rest of us aren't to keep illness at bay?
An Apple a Day Really Works
Your mom may have been right when she said, "An apple a day keeps the
doctor away." A natural antioxidant called quercetin, found in red apples
as well as broccoli and green tea, may give an immunity boost to individuals
In a study conducted by David Nieman, PhD, professor at Appalachian State
University, results showed that only 5% of cyclists who took 1,000 milligrams
of quercetin every day for five weeks reported upper respiratory illness during
a two-week period following extreme exercise, whereas 45% of the cyclists who
took a placebo reported illness following extreme exercise. However, there were
no significant differences in measures of immune system function in the two
Additionally, researchers found that athletes taking the quercetin
supplement maintained better mental alertness and reaction time over the
placebo group. So go ahead, stock up on those red apples and you may be
thanking Mom later.
Don't Worry, Conquer Stress
Stop worrying about getting sick.
The fear and expectation of having something adverse happen actually lowers
immunity, says Northrup. "When people are worried about it all the
time," she says, "they literally scare themselves to death."
Constant worrying causes cortisol and epinephrine levels to rise - and these
stress hormones can weaken the body's overall immunity. "The immune system
plummets when cortisol levels are chronically high," she says. "Your
own body produces high levels of steroids when you're under constant
Up Your Vitamin Intake
We have a worldwide epidemic of vitamin D deficiency, says Northrup.
Everybody needs vitamin D, which can be found in foods like sockeye salmon,
eggs, and milk.
Hyla Cass, MD, an integrative medical practitioner and author of 8 Weeks
to Vibrant Health, adds that certain prescription drugs like acid blockers
can deprive the body of nutrients like vitamin D.
Surveys show that Americans don't get enough vitamin C, says Elisabetta
Politi, RD, MPH, CDE, nutrition director at the Duke Diet & Fitness
Citrus fruits are a good source of vitamin C. "It's a myth that vitamin
C prevents the cold," she says. "But having an appropriate amount of
vitamin C from fruits and vegetables can boost