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Occasionally, the vitreous gel (the egg white–like substance that
fills most of the eyeball) pulls on the retina with enough force
to tear it. This separation of the retina from the back of the
eye allows fluid from inside the eye to enter through this tear
and detach the retina from the choroid (the nutrient-rich layer
underlying the retina). If this rupture is caught and treated
early, a retinal detachment (see illustration) may be prevented.
Folic acid is essential to the production of new cells, and helps protect against certain kinds of birth defects, but studies have suggested that an excess of folic acid may contribute to the growth of cancer cells.
Bone density is used as a key indicator of a woman's risk of hip
fracture, but an online assessment that uses other factors to
determine risk may be useful to women who have a normal bone
Though the drug-resistant bacterial infection known as MRSA
typically occurs in hospital settings, new cases have developed
as patients are discharged and bring the infection with them into
Floaters and flashes in the eyes are fairly common among older
people, but sometimes they can indicate a retinal tear, which, if
not treated promptly, can lead to retinal detachment.
A study found that people who followed four easily accomplished healthy behavior habits lived an average of 14 years longer than those who did not practice any of them.
I'm 26 and positive for HPV. Is there any point in my getting the
new HPV vaccine?
What can you tell me about the side effects of lithium? I've
heard it causes thyroid and memory problems.