But polio is just one of many conditions that can paralyze.
But recreating the many conditions that allow a species to thrive can be staggeringly complex.
As with acute renal failure, there are many conditions that can lead to chronic renal failure.
That study showed relatively modest benefits of surgery for many conditions that lead to back pain.
Yes, there are many conditions that can mimic Alzheimer's, including some that are possibly reversible.
Many conditions that can be transmitted are not reported, said Dr. Katie Rodan, a dermatologist in Oakland, Calif.
There are many conditions that can cause sharp chest pains, heart attack being just one of them.
Individuals may suffer from many conditions that may lead to organ damage or loss and necessitate eventual reconstruction or replacement.
There are many conditions that could cause low blood pressure, some of them are in fact positive, like being cardiovascularly fit.
"There are many, many conditions that are psychological in nature that share symptoms with this illness but do not share much of the underlying biology," said John Herd, 55, a former medical illustrator and a C.F.S. patient for two decades.
Research has already documented that higher levels of physical activity can help prevent or ameliorate many conditions that reduce function and hamper independence as we get older, including heart disease, stroke, cancer, diabetes, osteoporosis, and depression.
