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There are more nerve cells in one human brain than there are stars in the Milky Way.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Thyroid conditions may make getting pregnant impossible.